Can Watching Sports Increase a Man's Testosterone Levels?

Physician-reviewed testosterone education

Can Watching Sports Raise Testosterone?

Some studies suggest that male sports fans can experience short-lived testosterone changes after a favorite team wins or loses. The effect is interesting—but it is temporary and should not be confused with diagnosing or treating low testosterone.

Medically reviewed by Dr. Timothy Mackey
Medical Director · Updated September 2026

What is the “winner–loser effect”?

Researchers use the term winner–loser effect to describe temporary hormone changes after competition. In some studies, winners show a rise in testosterone while losers show a decline.

The effect has been reported not only in athletes, but also in spectators who strongly identify with a team. That suggests the brain can respond to vicarious competition as though the social outcome matters personally.

What did the sports-fan studies actually show?

A frequently cited 1998 study measured male fans watching basketball and World Cup soccer. Testosterone increased among fans of the winning team and decreased among fans of the losing team.

The results are intriguing, but they came from relatively small samples and do not prove that every fan experiences the same response. The magnitude and duration of the effect vary, and the findings should not be extrapolated into medical treatment claims.

Why might watching a team affect hormones?

Competition engages reward, stress and social-status systems in the brain. Emotional investment in a team can produce changes in arousal, cortisol, sympathetic activity and testosterone.

The response likely depends on factors such as how strongly a fan identifies with the team, whether the opponent is perceived as a rival, the importance of the event and the emotional intensity of the outcome.

Does winning against a rival matter more?

Research on direct competition suggests that context matters. Studies have found stronger testosterone responses when men compete against outside rivals than when competing against friends or members of the same social group.

This supports the idea that testosterone responses are not simply about “winning.” Social meaning, status and group identity influence the physiology.

Does higher testosterone make men more competitive?

Testosterone can influence competitive and status-seeking behavior, but the relationship is not simple or universal. Experimental research suggests that effects depend on baseline cortisol, social context and individual traits.

That is why it is inaccurate to say testosterone automatically makes a man more aggressive, dominant or motivated. See our guide to testosterone and motivation.

How long does the sports-related testosterone boost last?

These studies generally describe short-term changes around the event. They are not evidence of a sustained increase in baseline testosterone over days, weeks or months.

A temporary post-game rise is therefore very different from the persistent, repeatedly measured low testosterone used to diagnose hypogonadism.

Can watching sports fix low testosterone?

No. Even if a championship win causes a temporary hormonal spike, that does not treat a man with clinically significant testosterone deficiency.

Low testosterone is diagnosed from compatible symptoms or signs plus appropriately confirmed low testosterone concentrations. If symptoms are persistent, proper testing matters far more than short-term fluctuations caused by competition, sleep, stress or exercise.

See our low-testosterone testing guide.

Can exercise raise testosterone too?

Exercise—especially resistance and high-intensity activity—can cause acute testosterone changes, but these short-term responses are not the same as permanently increasing baseline testosterone.

Exercise still supports metabolic health, body composition, sleep and cardiovascular health, all of which can influence overall endocrine function.

What about gambling and testosterone?

Some research has explored winner–loser effects during gambling. Hormonal responses can occur after wins and losses, but those findings do not imply a health benefit from gambling and should not be interpreted as a way to “boost testosterone.”

Social competition and perceived victory can produce transient endocrine responses.

Could watching sports affect a testosterone blood test?

In theory, acute excitement, stress, sleep disruption or other short-term factors around a major event could contribute to normal biological variation. That is another reason testosterone deficiency should not be diagnosed from one isolated test result.

Repeat morning measurements under reasonably typical conditions provide a much more meaningful picture than a single value obtained after an unusual night of poor sleep, heavy alcohol intake or intense emotional stress.

Frequently asked questions

Can a football game increase testosterone?

Possibly, temporarily. Small studies suggest fans of a winning team may experience a short-term rise, especially when they strongly identify with the team.

Does losing lower testosterone?

Some studies have shown short-term declines in male fans after a loss, but individual responses vary.

Can watching sports permanently raise testosterone?

No evidence shows that simply watching sports produces a durable increase in baseline testosterone.

Can sports fandom improve low T symptoms?

Not as a medical treatment. Enjoyment, social connection and exercise related to sports can support well-being, but confirmed hypogonadism requires proper evaluation.

Should I avoid sports before a testosterone test?

There is no standard recommendation to avoid watching sports. More important factors are proper test timing, adequate sleep, avoiding acute illness and confirming low results on a separate day.

Medical references

• Bernhardt et al.: Testosterone changes during vicarious experiences of winning and losing among fans at sporting events
• Knight et al.: Testosterone and competitive behavior in men
• Endocrine Society: Testosterone Therapy in Men With Hypogonadism

This article is educational and does not replace individualized medical advice, diagnosis or treatment.