Explore published research on sex differences, including study methods and limitations.
Among drug treatment patients, 64% had alcohol dependence, 44% antisocial personality, and 24% depression. Cannabis dependence was higher in Caucasians and males, while women had higher depression and anxiety.
Population-based study of 133 schizophrenia patients found male cannabis users developed their first psychotic episode 6.9 years earlier than male non-users.
Early-life cannabis exposure was linked to subtle cognitive and psychiatric outcomes, with animal studies offering mechanistic clues but not human behavior.
Lab study found THC reduced sperm motility by up to 56% and inhibited the acrosome reaction by up to 57% at concentrations matching recreational cannabis use levels.
Ten days of cannabinoid receptor activation produced antidepressant-like effects in male and female rats through the noradrenergic system, but the effect was eliminated by precipitated withdrawal.
Review of endocannabinoid roles in reproduction: THC disrupted menstrual cycles and egg development in females, sperm production and motility in males.
Male cannabis users had slower motor skills and shifted brain activation from visual to executive regions, with elevated cortisol levels potentially mediating these effects.
Female adolescent rats showed greater locomotor depression and anxiety during THC withdrawal compared to males across multiple doses.
Infertile men's sperm showed reduced endocannabinoid levels and absent TRPV1 receptors, identifying potential biomarkers and treatment targets for male infertility.
Females often show stronger cannabinoid effects. Estradiol is a leading explanation in animals, while human evidence remains mixed.
Men with poor sperm quality had lower seminal levels of endocannabinoid-related molecules, and adding these molecules improved sperm motility in the lab.
Women gave higher "Good" and "Take Again" ratings than men after smoking cannabis in controlled conditions, despite identical intoxication — suggesting sex-specific vulnerability to cannabis's reinforcing effects.
First study examining THC dependence in both sexes of adult rats found broadly similar withdrawal signs spanning somatic, cognitive, and affective domains, with females showing more retropulsion.
Mouse study identified 2-AG as the primary endocannabinoid regulating stress hormone recovery, with sex differences in timing and compensatory mechanisms when CB1 signaling is absent.
Among 69 young cannabis users, earlier initiation was linked to worse episodic memory in females but not males, after controlling for lifetime use, suggesting sex-specific vulnerabilities.
Review found cannabis disrupts male fertility through the endocannabinoid system, affecting testosterone, sperm production, motility, and fertilization capacity.
Among 140 Mexican suicide attempters, males were significantly more likely to use cannabis and alcohol with substance-related diagnoses, while females had stress-related diagnoses.
Rat study found estrogen and progesterone promoted THC dependence and withdrawal symptoms, while testosterone appeared protective, potentially explaining sex differences in cannabis withdrawal.
Study of 49 women found endocannabinoid enzymes in the uterine lining change across the menstrual cycle, with degrading enzymes peaking during the implantation window.
Cannabinoid treatment during late adolescence reversed cognitive deficits and reduced anxiety caused by early life stress in rats, with sex-specific differences in brain receptor changes.
Estradiol suppressed reproductive hormone neurons through a pathway requiring both estrogen receptor beta and endocannabinoid 2-AG/CB1 signaling in mouse brain slices.
CB2 receptor activation mimicked retinoic acid in stimulating meiotic gene expression in sperm precursors, and both over- and under-activation disrupted the spermatogenic timeline in mice.
A survey of 5,080 Canadian adults found that hyperactive/impulsive ADHD symptoms predicted problematic cannabis use in men, while inattentive symptoms predicted it in women, revealing sex-specific pathways.
Large longitudinal study reveals sex-specific patterns: daily cannabis use predicted 4-fold increased suicidal ideation risk in men, while suicidal ideation predicted cannabis initiation in women.
Among 913 premenopausal women, heavy tobacco smoking reduced ovarian reserve markers by 56%, but marijuana use showed no association with antimullerian hormone levels.
Adolescent THC exposure produced lasting memory deficits and psychotic-like behaviors in male rats, driven by glutamate signaling disruption and neuroinflammation specifically in the hippocampus.
Rat pups born to mothers on high-fat diets developed early obesity with sex-specific alterations in cannabinoid receptor expression across different fat tissue types.
Comprehensive review establishing cannabis withdrawal as a neurobiologically grounded syndrome with a 4-week CB1 receptor recovery timeline, gender differences in severity, and limited but promising pharmacological treatments.
Animal study revealing sex-specific endocannabinoid system responses to alcohol withdrawal, with males showing anxiety and neurochemical disruption while females were protected by ovarian hormones.
Review of cannabis withdrawal neurobiology finding CB1 receptor downregulation drives withdrawal symptoms, recovery occurs with abstinence, and women may experience faster and more severe symptoms.
Among 302 adults entering cannabis treatment, women had significantly more severe withdrawal, more psychiatric disorders, and more pain than men despite identical cannabis use patterns.
In 777 methadone patients, cannabis use was linked to 82% higher odds of illicit opioid use in women but showed no association in men.
Analysis of 10,511 substance-related ED visits found cannabis third most common (14.4%) after alcohol and opioids, with sex-specific age differences in presentation patterns.
Male mice given daily CBD for 34 days showed 76% testosterone reduction, 38% fewer sperm, and sperm abnormalities persisting after a 35-day recovery period.
Boosting endocannabinoid levels with a FAAH inhibitor reversed depressive behavior, restored synaptic plasticity, and rescued neurogenesis damaged by adolescent THC in female rats.
Review found contradictory evidence on cannabis and male sex hormones, but most studies consistently associated cannabis use with lower sperm concentrations, suggesting negative fertility impact.
Population survey of 5,196 adults found ADHD did not predict arrest history, but cannabis misuse did, with a stronger effect in women than men.
Interviews with 24 adults found alcohol led to more social disinhibition and post-sex regret, while marijuana enhanced physical sensations, intensity, and orgasm quality, with both having distinct negative effects on sexuality.
A cannabinoid-free hemp variety from Benin Republic improved sperm quality in rats by reducing prolactin and boosting antioxidant activity, contrasting with the fertility-harming effects of THC-containing cannabis.
In a survey of 484 women with endometriosis, cannabis was rated the most effective self-management strategy for pain (7.6/10), ahead of heat, CBD oil, and dietary changes.
A survey of 1,321 chronic pain patients found wide variability in cannabis preferences by sex and experience, with only 2.6% receiving medical professional guidance on product selection.
Prenatal cannabinoid exposure in rats accelerated early motor development but worsened alcohol-related motor impairment specifically in females, with combined exposure showing complex interactions.
A review for pediatric gynecologists found adolescent marijuana use carries risks for brain development, reproductive health, and mental health, with limited research on gynecological-specific effects.
A controlled study found a single low IV dose of THC caused symptoms in 94% of healthy volunteers, with women experiencing significantly more negative effects and all physical reactions.
Female rats showed greater CB1 receptor changes than males after identical THC exposure across all brain regions. Estradiol contributed to the difference.
Study of 500 college students finds the MAOA gene interacts with childhood abuse to predict cannabis and tobacco use in sex-opposite patterns: high-activity variants matter in women, low-activity in men.
Canadian study of 43,466 people found women who use cannabis regularly experience significantly more psychological distress and suicidal thoughts than men who use at the same frequency.
Study of 401 at-risk teens found 74% maintained low cannabis use, with boys more likely to show chronic or escalating patterns and conduct disorder showing the strongest bidirectional link to problematic use.
CBD reversed memory and social deficits in female rats from a schizophrenia model, but reduced social behavior in healthy rats.
A systematic review found that cannabis may reduce sperm count, motility, and fertilizing capacity, though effects on testosterone remain unclear.
A meta-analysis found cannabis users had 69% ED prevalence versus 35% in non-users, with nearly four times the odds, though study heterogeneity was high.
National survey found school disengagement predicted marijuana use in Black teens of both sexes, but perceived peer use was 8x risk for females vs 3.5x for males.
Study of 83 first-episode psychosis patients found Moroccan immigrants had lower functioning and education but less cannabis use than Spanish-born patients.
Study of 1.2 million women found cannabis use disorder associated with 48% higher cardiovascular risk and doubled hemorrhagic stroke risk over up to 30 years.
10-year follow-up found women had higher early psychosis recovery rates (50% vs 31%) during specialized care, but the gap narrowed after discharge to community services.
A mouse model of a human FAAH gene variant showed that adolescent females had enhanced dopamine reward circuitry and stronger THC preference that lasted into adulthood, while males were unaffected.
Female rat offspring exposed to a cannabinoid agonist prenatally had reduced ovarian reserve in adulthood, an effect mediated by CB1 receptors. The delay between exposure and impact suggests a programmed developmental effect.
Prenatal THC exposure selectively destroyed CCK-containing hippocampal interneurons in male but not female mice, causing lasting memory deficits and disrupted brain oscillations through a CB1 receptor-dependent mechanism.
Ontario study found frequent cannabis use in youth aged 12-17 was associated with elevated anxiety, depression, and behavioral symptoms, with associations 2-3 times stronger in girls than boys.
Survey of 17,405 cannabis users found men using both medically and recreationally had 40% probability of driving high, versus 20% for women using medically only.
In 112 rats, prior nicotine exposure altered THC brain effects depending on age and sex: adult males showed reduced THC response while adolescent females showed potentiated effects.
A secondary analysis of 302 adults in a cannabis cessation trial found that depression predicted less abstinence (especially in women) and that depressive symptoms preceded increased cannabis use, not the other way around.
Analysis of 2002-2014 survey data found medical marijuana laws increased cannabis use among women but did not reduce opioid misuse, with divergent effects for pregnant versus parenting women.
A meta-analysis of brain imaging studies found no significant gray matter volume differences between cannabis-using and non-using teens, but age and sex influenced subtle, region-specific patterns.
Among 113 women with chronic pelvic pain, 23% used cannabis as an adjunct therapy. Nearly all users (96%) reported symptom improvement, and over a third reduced their healthcare visits as a result.
Women over 50 comprised 57% of cannabis poison control cases and were nearly twice as likely as men to call about therapeutic errors rather than misuse, often involving edibles and other non-plant cannabis products.
Study of 863 Spanish adolescents found girls had higher mental health-substance use comorbidity, with depression predicting cannabis use disorder and obsessive-compulsive symptoms predicting alcohol use disorder.
Among 3,426 women with pelvic pain, cannabis use jumped from 13% to 22% after Canadian legalization, with newer users being more educated and taking fewer daily opioids.
Analysis of 281,650 young adults found cannabis use disorder was associated with higher suicidality regardless of depression, with women showing significantly stronger associations than men.
Mouse study found females developed tolerance to THC pain relief faster than males in a chemotherapy-induced neuropathic pain model, with effects mediated primarily through CB1 receptors.
National study found emerging adults, men, Black/African American, Native, and sexual minority groups had the highest risk of co-occurring cannabis use disorder and suicidality.
Review of 37 studies found men are twice as likely to have CUD overall, but certain mental illnesses (anxiety, antisocial personality) reverse or narrow the sex gap.
A national study of 37,870 high school students found sexual minority girls had higher odds of marijuana use while sexual minority boys had lower odds, revealing important sex-based differences in substance use patterns.
A 30-day daily diary study found sexual minority young adult smokers had 2-3 times the odds of same-day cigarette-cannabis and triple substance use compared to heterosexual peers.
Animal study finds the synthetic cannabinoid MMB-Fubinaca produces stronger effects in males than females, all through CB1 receptors.
Animal study finds adolescent female rats metabolize vaped THC differently than males, with higher active metabolite levels and greater behavioral sensitivity at lower doses.
Female rats showed biphasic THC anxiety responses that males didn't — anxiolytic at low doses, anxiogenic at high. CBD blocked the anxiety and enhanced the calm.
Study of 171 young regular cannabis users found sex-specific cognitive effects: males had poorer visual memory while females showed worse attention and executive function, with effect sizes in the medium-to-large range.
PET imaging found women with cannabis use disorder had lower CB1 receptor levels in key brain regions than non-users, while healthy women naturally had higher CB1 levels than healthy men.
Systematic review of 15 studies found marijuana was associated with reduced sperm count, motility, and morphology, though evidence is observational and larger trials are needed.
Study of 74 young people found cannabis affected brain volume differently by sex (females had more, males had less), while higher aerobic fitness was linked to greater brain volume overall.
Randomized trial of 113 at-risk girls found a 12-session trauma-informed intervention (VOICES) significantly reduced cannabis use over 9 months compared to an attention control.
Animal study found THC's primary metabolite (11-OH-THC) was 7-31 times more potent than THC in mice, with female rats significantly more sensitive to THC than males.
Combined RCT data from 40 participants found minimal sex differences in acute vaporized cannabis effects, with males showing only slightly better divided attention and higher metabolite levels.
Marijuana improved spatial learning in female rats, but combining it with estrogen in older rats produced negative cognitive effects through the GPR30 receptor.
Among substance use disorder patients, women with ADHD started cannabis use earlier and used longer than any other group, highlighting a gender-specific vulnerability.
Adolescent cannabis vapor exposure produced opposite brain changes in male and female mice: structural changes in females and functional connectivity disruption with cognitive deficits in males.
A survey of 258 menopausal women found 79% using cannabis for symptoms, most commonly sleep and anxiety, with perimenopausal women reporting worse symptoms and more anxiety-motivated use.
A study of 2,995 young adults found cannabis use predicted increasing anxiety over time, while anxious individuals actually reduced their cannabis use, challenging the self-medication hypothesis.
Review found THC disrupts reproductive hormones, egg development, and sperm function through the hypothalamic-pituitary-gonadal axis, though mostly from preclinical evidence.
CBD disrupted fear memory reconsolidation in female rats through hippocampal CB1 receptors, reducing fear behavior for over a week without reinstatement.
CB2 receptors suppress motor tics in adult mice but may generate them in juveniles, with sex differences potentially relevant to Tourette syndrome prevalence.
Meta-analysis of 45 fMRI studies (2,702 youth) found cannabis users showed altered activation in prefrontal and cingulate regions, varying by sex, severity, and psychiatric comorbidity.
Six rhesus macaques given daily THC edibles experienced 58% testicular volume loss and hormone shifts consistent with testicular failure, in a dose-dependent pattern.
Blocking CB1 receptor desensitization delayed THC tolerance in male mice but not females, revealing sex-specific mechanisms. Females were also less sensitive to cannabinoid pain relief.
Mouse pups exposed to CBD prenatally showed sex-specific disruptions: males gained extra weight and changed vocalizations, while females had impaired motor and discrimination abilities.
THC withdrawal in mice disrupted dopamine release, sleep patterns, and behavior in ways that mirror human withdrawal, with more pronounced effects in males.
Adolescent THC exposure caused lasting, sex-specific hippocampal damage in rodents, with females more severely affected through disrupted estrogen-endocannabinoid signaling.
Systematic review found 61-95.5% of women reported pain relief from cannabis for gynecologic conditions, and PEA-combination studies showed a 3.35-point pain reduction, but inconsistent formulations limit conclusions.
Comprehensive review found cannabis exposure linked to adverse effects across reproductive health: altered fertility, preterm birth, impaired fetal development, and THC present in breast milk.
Study of 1.28 million Canadian births found prenatal cannabis use nearly doubled the risk of preterm birth and low birth weight and increased congenital anomaly risk by 71%, with female infants more susceptible.
Review found cannabis affects nearly every endocrine system: reduced fertility, altered thyroid function, blunted stress response, paradoxical diabetes effects, and modestly increased fracture risk.
Systematic review found mostly lab-based evidence for cannabis in endometriosis with conflicting results. Few human studies exist, and UK guidance currently cannot recommend cannabis for this condition.
Synthetic cannabinoid JWH-018 caused significant sperm damage and reduced testosterone in rats within days, but spermatogenesis showed partial recovery 45 days after stopping.
Among 1,424 adolescents, anxiety/depression predicted cannabis use only in girls with high ADHD hyperactivity-impulsivity, highlighting a specific risk profile for targeted intervention.
Review confirmed gender differences exist in cannabis-related psychosis, depression, and anxiety, but the direction varies. Women may be more vulnerable to mood effects; men may show stronger psychosis links.
Canadian clinical guideline provided GRADE-based recommendations on cannabis effects on fertility, contraception, menopause, and pelvic pain, emphasizing non-stigmatizing care.
Rat study found prenatal THC caused sex-specific brain lipid disruptions and neuropsychiatric-like behaviors in offspring, with males more persistently affected.
Diabetic rat study found cannabis reduced sperm motility dose-dependently and lowered testosterone, while metformin increased sperm counts but also reduced testosterone.
In adolescent rats, synthetic cannabinoid WIN 55,212-2 prevented medium-severity convulsions in both sexes and increased hippocampal CaMKII signaling.
Mouse study found adolescent THC exposure changed brain gene networks differently by sex, with four key driver genes also linked to human cannabis use disorder vulnerability.
Rats exposed to combined alcohol, cannabinoid, and nicotine during adolescence showed lasting learning deficits in adulthood, with females affected earlier than males.
Triple-blind crossover trial found women had significantly higher blood CBD levels than men at the same dose, with CBD detectable up to 50 days after stopping.
Animal study found the endocannabinoid system in the prefrontal cortex develops on different timelines in male and female rats, with females maturing earlier.
A 30-day experience sampling study of 145 women experiencing intimate partner violence found PTSD externalizing and arousal symptoms linked to same-period cannabis use but not future use.
Synthetic cannabinoid WIN55,212-2 caused anxiety and reduced activity in mice dose-dependently, with female mice less affected.
Chronic cannabis use reduces CB1 receptor number and responsiveness throughout the brain — with significant sex differences — explaining why the same dose stops working over time.
Combined literature review and Reddit analysis found mixed evidence on cannabis and male sexual health, with men actively seeking answers online amid conflicting experiences.
Lab study found THC at physiological concentrations impaired sperm capacitation and altered gene expression in a bull sperm model.
Animal study found prenatal cannabinoid receptor activation caused sex-specific epigenetic changes in offspring germ cells via histone modifications.
Rat study found CBD reduced pain effectively in both sexes, but females in late diestrus responded to doses 10-fold lower than males, suggesting hormonal influence on CBD efficacy.
Female rats showed cannabinoid withdrawal at lower antagonist doses than males, and the specific withdrawal behaviors differed by sex, supporting clinical observations that cannabis withdrawal manifests differently in women.
Prenatal THC exposure impaired spatial memory more severely in adolescent male rats than females, with males losing hippocampal inhibitory interneurons while females gained them, suggesting fundamentally different biological responses.
Among 741 cannabis users, emotion dysregulation was linked to more problematic use in men but less so in women, suggesting cannabis treatment may need sex-tailored approaches to emotional skill building.
Female mice showed greater initial impairment from synthetic cannabinoid AKB48 with higher blood levels and CB1 receptor density, while both sexes developed tolerance by the third dose, with females showing faster brain receptor adaptation.
Study of 3,814 CUD outpatients found women with children who used cannabis before treatment were most likely to drop out, with sex moderating the relationship between childcare responsibilities and treatment adherence.
Among 342 heavy cannabis users at a French clinic, women had 3.9x higher dependence odds despite using less cannabis, and 5.5x higher lifetime PTSD, with most PTSD linked to sexual assault.
Among 152 frequent cannabis users, women on hormonal contraceptives showed weaker brain responses to cannabis cues than naturally cycling women or men, pointing to a hormonal mechanism.
A German study found rising THC potency was associated with more cannabis-related psychiatric diagnoses across all 16 federal states, with men affected more than women.
LGBTQ+ dual users who also used cannabis had smaller reductions in cigarette smoking during quit attempts, especially on cannabis-use days.
Rat study found prenatal THC disrupted stress hormone receptors and dopamine signaling specifically in male offspring, causing stress vulnerability that was correctable with a developmental intervention.
Study of 225 young adults found greater cannabis use linked to small reductions in emotional processing speed and working memory, with modest age-of-onset effects but no sex differences.
Study of 3,044 fibromyalgia patients found 48% of males used medical cannabis vs 35% of females, alongside gender differences in PTSD, diagnosis age, and obesity.
Interviews with 30 older women found those with HIV used cannabis more for appetite and energy than HIV-negative women, with both groups shifting from recreational to therapeutic use over time.
Daily diary study found male college students were 7 times more likely to use cannabis the day after experiencing cyber dating abuse, while women showed no such pattern.
Adolescent THC rerouted dopamine axon growth from the medial to the orbitofrontal prefrontal cortex in male mice, altering impulse control, while females were protected by different molecular responses.
NHANES analysis found former cannabis users had over twice the odds of infertility compared to never-users, while current users showed no elevated risk, with the strongest association among those who quit 3+ years ago.
A large US claims database study found men with cannabis abuse/dependence diagnoses had nearly four times the short-term risk of erectile dysfunction and double the risk of low testosterone compared to matched controls, though effects attenuated over longer follow-up.
A 90-day rat safety study of CBD-rich hemp extract found no organ damage or behavioral changes at doses up to 35 mg/kg/day, but detected sex-dependent kidney and liver biomarker shifts, with CBD accumulating most in muscle, skin, and kidneys.
Prenatal THC exposure reprogrammed dopamine receptor expression in the prefrontal cortex of adolescent rats through epigenetic changes, with male offspring showing the strongest effects on D2 receptors, neuron excitability, and neural guidance systems.
A national survey of 17,000 US cannabis users found smoking dominant (77%) but methods varied by demographics: women preferred topicals, young adults vaped, Black adults were 5.3x more likely to use blunts, and older adults used sublingual products.
A Nature Communications study found THC reaches the ovarian follicle and causes chromosome segregation errors in human oocytes, with fertility patients testing THC-positive showing significantly lower rates of chromosomally normal embryos.
A 30-day tracking study found that the consequences of different cannabis consumption methods varied based on how often individuals used each method, with infrequent edible users experiencing more negative effects than frequent users.
An Israeli clinic study found cannabis prescriptions varied by condition and sex: GI patients got the highest doses, men received more cannabis and higher THC content than women.
Among 1,568 young adults, cannabis use was linked to nearly double the binge eating rate in women (24% vs 13%) but showed no such association in men, independent of depression.
CBD reversed elevated dopamine neuron activity in both male and female rats in a schizophrenia model and corrected memory deficits in males.
Brazilian LGBTQ+ youth, especially those assigned female at birth, had nearly double the odds of cannabis use and started using substances earlier than heterosexual cisgender peers.
Males with a specific MAOA gene variant who experienced childhood sexual abuse were more likely to use cannabis for coping, but this combination was associated with lower aggression.
Stress increased cocaine use equally in male and female rats, but cannabinoid CB1 receptor blockade reduced intake through different patterns in each sex.
Stress eliminated a form of synaptic plasticity in the brain's insular-to-reward pathway in male rats only, dependent on the endocannabinoid system.
Mixing legal-market cannabis with alcohol reduced word recall by about one word per trial—but only for men, not women.
Study of 1,246 women with HIV found 27% used cannabis (twice the national average), with half changing their use frequency over 18 months.
Rat study found oral THC provided dose-dependent inflammatory pain relief (stronger in females), but adding CBD diminished THC's analgesic effects rather than enhancing them.
fMRI study found women cannabis users had blunted brain responses to cannabis cues compared to men, with unique brain-craving links found only in women.
National survey found cannabis use disorder nearly quadrupled suicidal ideation risk in women veterans, while lifetime cannabis use doubled suicide plan odds.
A study of 1,058 young Danish men found no association between ever using cannabis and semen quality or most reproductive hormones, though a slight FSH increase suggested possible early testicular effects.
GDNF brain injection in cannabis-addicted rats reduced anxiety, reversed sperm morphology damage, decreased DNA damage, and improved sperm viability.
A 16-year study of 52,000+ psychiatric admissions found cannabis users were more likely to need intensive care during the 3-5 day cannabis withdrawal window, especially women and older adults.
Mouse study found amphetamine disrupted endocannabinoid-dependent brain plasticity through astrocyte CB1 receptors in males only, revealing a sex-specific mechanism in the reward system.
Study of 148 people with cannabis use disorder found women used cannabis more in negative emotional contexts than men, with childhood stress linking to coping-motivated use in both genders.
Systematic review of 29 studies found limited evidence for sex differences in acute cannabis cognitive effects, though females showed greater impairment in the few studies that found differences.
Interviews with 23 Canadians in cannabis treatment found recreational use is still seen as masculine, women face extra stigma, but legalization may be shifting these norms.
Mouse study finds cannabinoid receptors significantly regulate ovarian follicle development, estrogen production, and blood vessel formation, with CB2 receptors playing a key role.
New THC vapor self-administration model shows female rats work harder for THC than males and that prior THC exposure increases later use, revealing sex differences in cannabis reinforcement.
Daily diary study of 40 women finds cannabis use peaks premenstrually, with mood and pain/coping motives interacting differently across menstrual cycle phases.
Systematic review of 8,849 women finds consistent evidence that cannabis use before sex improves orgasm function, though quality evidence is limited.
A study of 93,743 US adults found that cannabis use mediated a larger share of the link between depression, pain, and suicidal behavior in women than in men.
A study of 152,930 US adults found that using cannabis and opioids together was associated with a smaller-than-expected increase in suicidal behaviors, particularly in women.
THC altered hippocampal neurotransmission in female rats, but the direction of effects depended on whether estrogen was present, revealing a complex hormone-cannabinoid interaction in the brain.
Among 530 psychiatric inpatients, cannabis use was linked to lower suicidal intensity in women but not men, with low psychological flexibility amplifying risk in male cannabis users.
Study of 471 college students found eating disorder symptoms linked to cannabis use disorder, with male students showing the strongest association.
PET imaging in Alzheimer's mice showed the brain's cannabinoid system changes early in disease, with sex-dependent patterns that could guide treatment approaches.
Rat study found activating cannabinoid receptors during adolescence worsened ADHD-like hyperactivity and risk-taking, with stronger effects in females.
Rat study found prenatal THC exposure during early vs late pregnancy produced opposite effects on brain immune cell activity and social behavior.
Combined CBD and sodium nitroprusside during early brain development prevented schizophrenia-like symptoms in rats, with stronger effects in females than males.
Men with PTSD showed depleted endocannabinoid levels while women showed elevated inflammatory markers, suggesting PTSD operates through different biological mechanisms by sex.
Mouse study finds oral CBD and THC during pregnancy both impaired fetal growth and caused sex-dependent behavioral changes in offspring, challenging the assumption that CBD is safe for pregnant use.
Scoping review highlights growing evidence that cannabis affects males and females differently, with sex-based variations in sensitivity, tolerance, withdrawal, and behavioral outcomes.
CBD reduced depressive behaviors and brain inflammation in female rats exposed to both obesity and chronic stress, with effects depending on the type of stressor.
Mouse study found prenatal cannabis exposure impaired metabolic control in female but not male offspring, with paradoxically different effects depending on diet.
CBD reduced facial nerve pain consistently in both male and female rats without motor impairment, working through anti-inflammatory and antioxidant mechanisms in pain pathways — outperforming carbamazepine on consistency.
Newborn rats given CBD showed lasting reductions in brain cell branching in both sexes, with females developing spatial memory deficits in adulthood — raising safety concerns about early-life CBD exposure.
Preclinical study showing mice without the endocannabinoid enzyme NAPE-PLD have sex-dependent changes in opioid and natural reward responsiveness.
Preclinical study finding chronic oral THC enhances working memory in aged rats without affecting young adults, suggesting cannabis may help age-related cognitive decline.
A rigorous crossover trial found that even 20 mg of CBD altered the body's natural cannabinoid levels—with men and women showing different dose-response patterns.
Rat study finds adolescent THC vapor exposure doesn't increase alcohol consumption but alters the psychological framework of drinking behavior differently in males and females.
Study of 520 Hispanic/Latine cannabis users finds anxiety sensitivity drives cannabis problems through different motivational pathways for men (coping) and women (expansion).
Behavioral economics study shows people in pain want more cannabis, pay more for it, and are harder to deter — underscoring pain as a key driver of cannabis demand and potential misuse.
Longitudinal mouse MRI study found prenatal THC caused enlarged ventricles in embryos followed by sustained brain growth deceleration into adulthood, with females more affected.
Rats developed clear THC tolerance after 7 days of dosing but showed no spontaneous withdrawal symptoms when THC was stopped — even with a sensitive behavioral measure.
Rat study finds single cannabis vapor exposure before fear learning prevents fear memory return two weeks later in both sexes, with opposite effects on extinction learning between males and females.
Low-dose CBD reduced cocaine self-administration in female mice by altering reward pathways, while higher doses showed paradoxical effects. Males showed no response, highlighting critical sex differences.
Commentary reveals cannabis cognitive research is male-centered and underpowered for sex analysis, with only 6 of 29 studies finding sex differences — likely reflecting methods, not biology.
Over a decade, the teen cannabis-distress link grew stronger, especially for frequent female users, while overall teen use declined.
Up to 95% of endometriosis patients use cannabis for pain, but no controlled trials exist to confirm efficacy.
A 12-week RCT found varenicline reduced cannabis use in men with CUD but had no effect in women.
High-dose CBG impaired sustained attention in female rats but not males, contradicting marketing claims of cognitive enhancement.
Monthly ultra-low-dose THC prevented cognitive decline in Alzheimer mice, with sex-specific anti-inflammatory patterns.
Daily CBD in Alzheimer mice reduced brain immune cell reactivity but did not improve cognition, behavior, or brain volume.
Animal study finds melatonin protects against cannabis-induced reproductive hormone disruption in female rats, with CB1 receptors primarily responsible for the hormonal effects.
Survey of 549 sexual minority men found cannabis users had 83% higher odds of erectile dysfunction, highlighting an understudied intersection of cannabis and sexual health.
National survey of 40,000+ adults reveals bisexual women have 2.57x higher odds of cannabis use, with distinct gender-specific patterns across sexual orientation dimensions.
Mouse study shows females develop greater THC tolerance than males after 90 days, with chronic THC increasing anxiety in females and HIV status adding neuroinflammatory complexity.
Study in female rats finds CB1 activation reduces acute fear but may impair fear extinction, with important implications for cannabis use in PTSD treatment.
International survey subset found 32% of endometriosis patients using cannabis reported side effects, but researchers argue some adverse effects may have therapeutic value in this population.
Scoping review of 270 studies found cannabinoid research in women heavily focuses on pregnancy safety (80%), with major gaps in women-specific conditions, CBD, delta-8 THC, and motivations for use.
Single neonatal THC dose caused lasting spatial memory deficits in female rats but not males, with altered dendritic structure in both sexes — revealing stark sex-specific vulnerability.
Longitudinal brain imaging of 136 teens found cannabis use linked to cortical thinning (especially in males), while pre-existing brain differences also predicted who would use cannabis.
Review found the endocannabinoid system regulates key headache mechanisms including pain signaling, inflammation, and cortical excitability, with sex differences shaping treatment responses.
Cannflavin B, a non-psychoactive cannabis flavonoid, normalized social behavior, reduced anxiety in females, and corrected brain wave abnormalities in an adolescent rat model of autism.
Veteran study found cannabis use disorder rose faster in states that legalized, but increases were similar for male and female veterans with one exception.
Both THC and CBD reduced testosterone production in adrenal cells in vitro, contradicting the finding that cannabis users have higher testosterone, suggesting indirect mechanisms in the body.