Published summary: 2026-03-07
Where the evidence converges
Rigorous crossover trial found CBD at 50 mg and 300 mg did not improve or impair running performance, mood, or perceived exertion in trained athletes
Strong evidence · 1 studies
Acute single-dose design; chronic CBD use effects not assessed. Sample of trained runners may not generalize to other athletes or recreational exercisers. Three conditions in crossover design may not
Large national survey finds cannabis users are 24% more likely to be physically active, with the strongest association in states with legal recreational cannabis
Moderate evidence · 3 studies
Based on limited number of strong-evidence studies.
Where questions remain
Review found THC is generally performance-impairing despite WADA prohibition, with impaired reaction time, coordination, and strength, contrasting with caffeine's clear ergogenic effects
Moderate evidence · 6 studies
Narrative review may not capture all relevant studies. THC effects vary by dose, timing, tolerance, and individual sensitivity. Most exercise-THC studies were conducted in non-athletes. The specific c
Systematic review found that exercise, massage, acupuncture, several medication classes, and lifestyle factors all upregulate the endocannabinoid system, relevant to conditions like migraine and fibromyalgia
Moderate evidence · 6 studies
Most of the evidence came from preclinical studies (in vitro and animal). Only 36 human studies were included, many with small sample sizes. The clinical significance of measured endocannabinoid chang
Systematic review of 15 studies finding THC does not improve aerobic performance or strength, inhibits exercise-induced asthma, and triggered angina at lower workloads in all cardiac-vulnerable subjects
Moderate evidence · 6 studies
Only 15 studies were found, reflecting the extremely limited research base. Many studies were older and used varying cannabis preparations, doses, and exercise protocols. The small number of studies p
Study of 79 young adults found aerobic fitness moderated cognitive deficits associated with cannabis use, with fitter users performing better after 3 weeks of abstinence
Moderate evidence · 6 studies
Cross-sectional design cannot determine causation. Relatively small sample. Cannot determine whether fit users had less severe use patterns or other protective factors. Three weeks of abstinence may n
Research gaps
- Long-term prospective studies tracking outcomes over 5+ years are largely absent from the literature.
- Research on diverse populations (different ages, ethnicities, and medical backgrounds) remains limited.
Key studies
Exercise consistently raises endocannabinoid levels in the body
The "runner's high" has traditionally been attributed to endorphins, but this research suggests the endocannabinoid system plays a major role in exercise-induced mood elevation and pain relief.
CBD at 50mg or 300mg Did Not Improve or Impair Running Performance in Trained Athletes
Athletes increasingly use CBD for recovery and other health purposes. This rigorous trial provides reassurance that acute CBD use at common doses does not impair performance, while also finding no performance enhancement.
High-Intensity Exercise Did Not Repair Brain Changes From Cannabis Use Disorder
Exercise has been proposed as a potential treatment for addiction, but this rigorous trial found it did not reverse CUD-related brain changes while people kept using. The strong adherence rate is the silver lining -- it shows people with CUD can commit to structured exercise programs, which could po
CBD Did Not Enhance the Exercise Experience in a Running Trial
CBD is increasingly marketed to athletes. This trial found no enhancement of exercise experience, providing evidence against marketing claims while confirming CBD does not impair exercise.
CBD Altered Exercise Physiology Without Hurting Performance in Trained Runners
Athletes are increasingly using CBD for recovery and performance. This is among the first controlled studies examining CBD's acute effects on exercise physiology, finding it changes metabolic responses without impairing performance.
Daily cycling exercise improved sleep during inpatient cannabis withdrawal
Sleep disturbance is one of the most common and distressing symptoms of cannabis withdrawal, often driving relapse. Finding non-pharmacological interventions that improve sleep during this critical period could support more successful cessation.
How the research developed
2010–2014
4 studies published. Predominantly observational and review studies.
2015–2019
6 studies published. Predominantly observational and review studies.
2020–present
36 studies published. Includes 1 meta-analyses, 6 RCTs, 3 strong-evidence studies.
How this summary was assembled
This consensus synthesizes 46 peer-reviewed studies: 1 meta-analyses (2%), 6 randomized controlled trials (13%), 12 observational studies (26%), 14 reviews (30%), 13 other study types (28%). Studies span from the earliest available research through 2025. Evidence strength ratings reflect study design, sample size, and replication across multiple research groups.
These counts describe the source summary at publication. They may differ from the current library.