You have a hard training session tomorrow, and someone tells you that ejaculation will drain your testosterone, blunt your strength, and slow your gains. The claim sounds physiological enough to be plausible, especially when social media offers precise abstinence windows and dramatic hormone figures. But a short-lived change in a blood test is not the same thing as improved muscle growth, endurance, or recovery. Here is what the evidence says—and how to make practical decisions without turning your sex life into an unproven training protocol.

The Testosterone Story Is Less Dramatic Than It Sounds

Testosterone matters for male health, but every temporary rise does not produce more muscle—and ejaculation does not necessarily cause a meaningful hormonal loss.

Direct evidence on abstinence and resting testosterone is sparse. In one experiment involving 10 healthy men, testosterone was higher after three weeks of abstinence. Yet orgasm did not acutely change testosterone, and the study had no separate randomized control group. It cannot show whether the higher level was reproducible, durable, or meaningful [3].

An older two-month study of 20 men made the picture less tidy. Within the same person, more sexually active periods coincided with higher testosterone. But between participants, less sexually active men had higher average levels [4]. Testosterone might influence sexual activity, both might respond to another factor, or the pattern might reflect chance. Neither association establishes causation.

There is also no credible evidence for a special seven-day peak. The widely repeated claim that testosterone reaches 145.7% of baseline on day seven comes from a paper that was later retracted. Its result should not guide training or health decisions [9]. No strong dose-response trial has shown that seven, 14, 21, or more days of abstinence creates a durable hormonal advantage.

Athlete performing the same exercise on both sides of a conceptual comparison

Ejaculation Does Not “Empty” Your Testosterone

The idea of depletion suggests that testosterone falls after orgasm and needs days to rebuild. Controlled observations do not support that model.

In the 10-man experiment, orgasm raised heart rate, blood pressure, catecholamines, and prolactin, but testosterone did not change [3]. Another older study found a temporary rise in several circulating steroids, including testosterone, after masturbation compared with an anticipation-only condition [5]. A recent exercise trial also found higher post-exercise testosterone after masturbation than after abstinence [6].

Different procedures, sampling times, and exercise conditions help explain the mixed results. The point is not that ejaculation “boosts” testosterone, but that evidence does not show a meaningful crash. A brief fluctuation does not demonstrate a lasting baseline change.

Performance Tests Show Little Reason to Abstain

For a recreational trainee, the practical question is usually not what happens to one blood marker. It is whether sexual activity changes strength, power, muscular endurance, or aerobic performance.

A 2022 meta-analysis pooled nine crossover studies with 133 participants, 99% of them male. Sexual activity occurred between 30 minutes and 24 hours before exercise testing. Across aerobic fitness, muscular endurance, strength, and power, the overall difference between sexual activity and abstinence was essentially zero. The standardized mean difference was 0.03, with a 95% confidence interval from -0.10 to 0.16 [1]. In plain language, neither approach had a meaningful average advantage.

That conclusion is reassuring, not absolute. Studies were small, young men dominated the samples, and laboratory fitness tests were not real competition. Very small or sport-specific effects remain possible.

A 2025 systematic review reached a similar conclusion. Individual trials sometimes reported changes in speed, strength, or perceived exertion, but no consistent benefit or harm appeared across performance, fatigue, or hormonal markers [2]. An isolated significant result is not a dependable training effect.

What About Sex Right Before Training?

The shortest timing window has received fresh attention. In a randomized crossover trial, 21 well-trained young men either masturbated to orgasm or abstained before cycling and handgrip tests. Masturbation 30 minutes before exercise was associated with 3.2% longer cycling duration and a slight increase in mean handgrip strength. Testosterone, cortisol, and heart rate were also higher, while markers of muscle damage and inflammation were not worse [6].

This is not proof that masturbation is a pre-workout aid. Effects were trivial to small, the trial involved only 21 men, and blood was sampled after exercise. The hormone differences therefore cannot be isolated from arousal and exercise. Nor can the result automatically apply to older or untrained men, partnered sex, other sports, or competition.

Taken with the broader review evidence, the study argues against a mandatory abstinence window. It does not justify prescribing sexual activity for performance.

Acute Hormones Are Not Long-Term Gains

Muscle growth and fitness adaptations accumulate through repeated training over weeks and months. A temporary hormone reading is only a snapshot.

No controlled longitudinal study has shown that abstinence increases muscle size, maximal strength, endurance adaptation, or recovery across a training program [1], [2]. Long-term trials have barely been done, but resistance-training research offers a useful lesson.

In a within-person training study, researchers repeatedly created either a large or a small acute systemic rise in testosterone, growth hormone, and IGF-1. The larger hormone response did not produce greater elbow-flexor muscle or strength gains [7]. That experiment did not test sexual abstinence, so it cannot rule out every possible pathway. It does show why a transient rise in circulating hormones is not enough to claim extra hypertrophy.

For training decisions, direct outcomes matter more: load and repetition progress, muscle measurements, time-trial performance, fatigue, soreness, and the ability to recover for the next session.

Balanced food, water, and rest supporting recovery after training

A Practical Approach for Recreational Trainees

Healthy adult men can generally treat abstinence as a personal, religious, or psychological choice—not a required testosterone strategy. The available evidence supports a few practical conclusions:

  • Do not expect abstinence to produce extra muscle, strength, endurance, or recovery. Those outcomes have not been demonstrated.
  • Sexual activity within the previous day is unlikely to meaningfully change average gym or aerobic-test performance [1], [2].
  • Around an important event, keep the routine that leaves you comfortable, rested, fed, hydrated, and focused. Sleep loss, alcohol, emotional stress, or a disrupted meal schedule may matter even when ejaculation itself does not.
  • If either sexual activity or enforced abstinence reliably distracts you or disturbs your sleep, adjust the timing according to your observed response. That is an individual routine decision, not evidence of testosterone depletion.

These recommendations apply most directly to healthy recreationally active men. Confidence is higher about acute performance than months-long abstinence, because long-term outcomes are poorly studied. Evidence concentrated in young men and laboratory tests cannot guarantee the same response across ages, sports, or competition.

When a Testosterone Concern Is Medical

Feeling tired after a hard week or seeing one low result does not establish testosterone deficiency. Hormone levels vary, and measurements taken around exercise or sexual activity can be particularly difficult to interpret.

Clinical guidance recommends diagnosing hypogonadism only when compatible symptoms occur alongside unequivocally and consistently low testosterone, confirmed with repeat morning fasting measurements and accurate assays [8]. If persistent symptoms or a previous low result are a genuine concern, seek qualified medical evaluation rather than experimenting with abstinence or self-prescribing testosterone. This is not a reason for routine screening, but it is a reason to distinguish a medical question from a fitness myth.

Conclusion

Abstinence has not been shown to provide a reliable testosterone, performance, muscle-growth, or recovery advantage. Ejaculation does not appear to cause meaningful testosterone depletion, and sexual activity in the day before exercise is broadly neutral on average. Choose abstinence—or not—according to your values, comfort, and routine, while judging your training by the outcomes that actually accumulate over time.

Sources

  1. Zavorsky GS, Brooks RA. The influence of sexual activity on athletic performance: a systematic review and meta-analyses. Scientific Reports. 2022;12:15609. Direct link: https://www.nature.com/articles/s41598-022-19882-2. DOI: 10.1038/s41598-022-19882-2. PMID: 36114261.
  2. Fernández-Lázaro D, Seco-Calvo J, Izquierdo JM, et al. Exploring Sex Activity Impact on Biological Biomarkers and Athletic Parameters in Sexually and Physically Active Healthy Adults: A Systematic Review of Clinical Trials. Physiologia. 2025;5(4):45. Direct link: https://www.mdpi.com/2673-9488/5/4/45. DOI: 10.3390/physiologia5040045.
  3. Exton MS, Krüger TH, Bursch N, et al. Endocrine response to masturbation-induced orgasm in healthy men following a 3-week sexual abstinence. World Journal of Urology. 2001;19(5):377–382. Direct link: https://pubmed.ncbi.nlm.nih.gov/11760788/. DOI: 10.1007/s003450100222. PMID: 11760788.
  4. Kraemer HC, Becker HB, Brodie HK, et al. Orgasmic frequency and plasma testosterone levels in normal human males. Archives of Sexual Behavior. 1976;5(2):125–132. Direct link: https://pubmed.ncbi.nlm.nih.gov/1275688/. DOI: 10.1007/BF01541869. PMID: 1275688.
  5. Purvis K, Landgren BM, Cekan Z, Diczfalusy E. Endocrine effects of masturbation in men. Journal of Endocrinology. 1976;70(3):439–444. Direct link: https://pubmed.ncbi.nlm.nih.gov/135817/. DOI: 10.1677/joe.0.0700439. PMID: 135817.
  6. Fernández-Lázaro D, Garrosa M, Santamaría G, et al. Sexual activity before exercise influences physiological response and sports performance in high-level trained men athletes. Physiology & Behavior. 2026;307:115203. Direct link: https://www.sciencedirect.com/science/article/pii/S0031938425004044. DOI: 10.1016/j.physbeh.2025.115203. PMID: 41390043.
  7. West DWD, Burd NA, Tang JE, et al. Elevations in ostensibly anabolic hormones with resistance exercise enhance neither training-induced muscle hypertrophy nor strength of the elbow flexors. Journal of Applied Physiology. 2010;108(1):60–67. Direct link: https://pmc.ncbi.nlm.nih.gov/articles/PMC2885075/. DOI: 10.1152/japplphysiol.01147.2009. PMID: 19910330.
  8. Bhasin S, Brito JP, Cunningham GR, et al. Testosterone Therapy in Men With Hypogonadism: An Endocrine Society Clinical Practice Guideline. The Journal of Clinical Endocrinology & Metabolism / Endocrine Society. 2018;103(5):1715–1744. Direct link: https://www.endocrine.org/clinical-practice-guidelines/testosterone-therapy. DOI: 10.1210/jc.2018-00229. PMID: 29562364.
  9. Jiang M, Xin J, Zou Q, Shen JW. A research on the relationship between ejaculation and serum testosterone level in men [retracted]. Journal of Zhejiang University Science. 2003;4(2):236–240; retracted in 2021. Direct link: https://pubmed.ncbi.nlm.nih.gov/12659241/. Original DOI: 10.1631/jzus.2003.0236. Retraction DOI: 10.1631/jzus.2003.r236. PMID: 12659241. This article is listed only to document that the widely cited seventh-day finding is retracted, not as supporting evidence.