Men tend to feel sleepier after sexual intercourse compared to women. This is actually a physiological phenomenon in men caused by several factors.
1. Why do men often fall into a deep sleep after sexual intercourse?
There are many reasons why men are more likely to fall asleep after sex than their partners. The main reason for this phenomenon is the desire and energy consumption during intercourse. Additionally, there are factors related to hormones, the tendency to reach orgasm, and others.
The energy consumption from sexual behaviors, from affectionate touches to actual intercourse, is significant. The more desire there is, the more sexual activity takes place. Therefore, men put all their energy into their sexual movements, leading to significant energy expenditure.
2. Reasons why men sleep deeply after “bang, bang, bangity-bang”
First, sexual intercourse often happens at night, which is also the time when people typically fall asleep after a long day of work. Therefore, it is natural for men to fall asleep after sex.
Second, according to some studies using positron emission tomography (PET) scans, men often reach orgasm after intercourse and forget their anxieties or fears. As a result, men tend to feel relaxed and are more likely to fall into a deep sleep.
Third, after reaching orgasm, men release several hormones, including endorphins, serotonin, oxytocin, vasopressin, nitric oxide (NO), and prolactin. These hormones contribute to relaxation, increased sleepiness, better sleep quality, and greater comfort. Among these, oxytocin and vasopressin help reduce stress, which can further promote relaxation and sleepiness.
Fourth, deep sleep in men is closely related to the hormone prolactin. Sexual satisfaction triggers the brain to release prolactin, leading to higher natural prolactin levels during sleep. This contributes to sleepiness. Additionally, prolactin explains why men often feel sleepier after intercourse than after masturbation. Recent studies have shown that orgasm during intercourse releases four times more prolactin than orgasm from masturbation.
Fifth, during intercourse, men often hold their breath or breathe rapidly, leading to less oxygen being supplied to their bodies than normal. This factor can trigger sleepiness.
Men often fall into a deep sleep after sex, which can sometimes leave their partners feeling disappointed or sad, as women often desire more affection and intimacy after sex. Specifically, they may want more caressing and closeness, and rarely take the initiative in approaching their partner.
However, this phenomenon of deep sleep in men is a normal physiological occurrence. Therefore, sleepiness should not be used as an indicator of shallow or inattentive feelings. Men’s love for their partners begins with daily gestures of care and attention.
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