How Sex Affects Health and Which Risks Matter

TL;DR

Regular sex is associated with exercise, stress relief, better sleep, reduced depression risk, immune benefits, and lower all-cause mortality, but some sexual practices may carry overlooked biological risks. Choking during sex was associated with elevated S100B, a protein linked to disruption of the blood-brain barrier and brain injury, although that finding alone does not prove brain damage.

Transcript

This makes me want to do porn commentary where it's like, okay, like you pause the porn scene, it's like, all right, let's evaluate what's happening here and what the potential consequences could be. They don't realize that porn has not gone through some kind of like evaluation of is this safe, is this okay? It's kind of like when people eat food, ... Read More

Key Insights

• Sex can function as modest exercise, with the average person described as burning about 85 calories per episode of intercourse. The conversation compares this energy expenditure to taking a walk and presents regular sexual activity as one possible source of additional movement and cardiovascular benefit.
• Sex is associated with stress relief through lower cortisol and the release of oxytocin and endorphins. These responses may contribute to emotional benefits, including the reported association between frequent sex and a 20–40% lower risk of depression.
• Regular sexual activity is associated with several reported health benefits, including higher IgA levels, improved sleep quality, reduced pain, increased pain thresholds, and lower all-cause mortality. The discussion treats these findings as associations supporting a possible longevity benefit, not as guarantees for any individual.
• Frequent ejaculation is associated with lower prostate cancer risk in the evidence discussed. Men who ejaculate 21 or more times per month were described as having a 20–35% reduction in prostate cancer risk, though the conversation does not establish that ejaculation alone causes the reduction.
• Orgasm may contribute benefits through sympathetic and parasympathetic activation, while intercourse itself supplies movement and energy expenditure. Intimacy and closeness may provide additional value, but the discussion acknowledges that these connection-related effects are difficult to quantify and have not been studied sufficiently to reach firm conclusions.
• Female orgasm commonly requires more than vaginal penetration alone. Only 18% of women were said to orgasm through vaginal penetration alone, and clitoral stimulation was presented as important because the clitoris has 8,000 nerve endings. Understanding one’s body and communicating within a healthy partnership were emphasized.
• Sexual choking may have measurable biological consequences. In a study of 32 college-age women, participants choked during sex four or more times in the previous month had increased S100B, a protein associated with cell repair, brain signaling, and disruption of the blood-brain barrier.
• Elevated S100B does not by itself prove that brain damage occurred. The protein is associated with concussion, traumatic brain injury, brain swelling, and sleep disruption, so its increase raises concern and supports further evaluation of choking as a risky sexual behavior rather than establishing a definitive diagnosis.

Questions & Answers

Q: How can regular sex affect physical and mental health?

Regular sex is described as providing modest exercise, stress relief, and possible emotional and physiological benefits. The average person reportedly burns about 85 calories per episode of intercourse. Sexual activity may lower cortisol and release oxytocin and endorphins, and frequent sex is associated with a 20–40% reduced risk of depression. Other reported associations include improved sleep, increased pain thresholds, higher IgA levels, and lower all-cause mortality.

Q: Does sex count as exercise?

Sex can count as a form of physical activity because intercourse requires movement and energy. The average person is described as burning about 85 calories during intercourse, an amount compared with going for a walk. The discussion therefore presents sex as providing some cardiovascular fitness and movement benefits. It does not claim that every encounter has the same intensity or that sexual activity supplies every form of exercise a person needs.

Q: Are orgasms required to receive the health benefits of sex?

Orgasms may be involved in some benefits, but the discussion does not say they are required for all of them. Sympathetic and parasympathetic activation during orgasm may contribute to effects involving mood and heart rate variability. Intercourse also provides movement and energy expenditure independently of orgasm. Intimacy and closeness with a partner may add benefits, although those effects are described as difficult to quantify and insufficiently studied.

Q: Why might sex reduce stress and depression risk?

Sex may relieve stress by lowering cortisol and stimulating the release of oxytocin and endorphins. These biological responses are presented as possible contributors to emotional well-being. Frequent sexual activity is associated in the discussion with a 20–40% reduction in depression risk. The conversation describes an association and plausible mechanisms, but it does not establish that sex will prevent or treat depression in every person.

Q: How often must men ejaculate for the reported prostate benefit?

The evidence discussed associates ejaculating 21 or more times per month with a 20–35% reduction in prostate cancer risk among men. This is presented as a statistical association within broader claims about the possible health benefits of regular sexual activity. The discussion does not provide individual medical recommendations, explain the study design, or establish that reaching this frequency directly causes the reported reduction.

Q: Why is clitoral stimulation important for female orgasm?

Clitoral stimulation is important because only 18% of women are said to orgasm from vaginal penetration alone. The clitoris is described as containing 8,000 nerve endings, making it a major source of sexual sensation. Women are encouraged to understand their own bodies, include the forms of stimulation they need, and develop a good relationship with a partner rather than assuming penetration alone should reliably produce orgasm.

Q: What did the study on choking during sex find?

The study included 32 college-age women. Half had been choked during sex four or more times in the previous month, while the other half had not. Blood testing found increased S100B among the exposed participants. S100B is linked to brain cell repair and signaling and is often elevated when the blood-brain barrier is damaged, making the result a potential warning of biological consequences.

Q: Does elevated S100B prove that sexual choking causes brain damage?

Elevated S100B does not definitively prove that brain damage occurred. The protein is associated with disruption of the blood-brain barrier and has been linked with concussions, traumatic brain injury, brain swelling, and sleep disruption. Its increase in women who had recently experienced repeated sexual choking is concerning, but the clinician explicitly cautions that the biomarker alone cannot establish definite brain damage.

Summary & Key Takeaways

• Sex is presented as a biological function with potential physical and emotional benefits. The discussion associates regular sexual activity with modest exercise, lower cortisol, oxytocin and endorphin release, improved sleep, greater pain tolerance, reduced depression risk, immune effects, and lower all-cause mortality, while acknowledging that the evidence does not answer every question.

• Pleasure and orgasm are not identical for every person or sexual activity. Some benefits may arise from physical movement, some may involve the nervous-system effects of orgasm, and others may reflect intimacy and connection. For women, vaginal penetration alone produces orgasm in only 18% of cases, making clitoral stimulation and bodily self-knowledge important considerations.

• Sexual-health education should identify risks without dictating personal choices. One discussed study compared 32 college-age women, half of whom had been choked during sex at least four times in the preceding month. The exposed group showed increased S100B, a protein associated with brain injury and blood-brain barrier disruption, but the marker did not prove brain damage.