Men often feel sleepy after sexual intercourse more than women do. This is actually a physiological phenomenon in men due to various reasons.
1. Why do men often fall asleep after sex?
There are many reasons why men are more likely to fall asleep than their partners. The main reason for this phenomenon is the desire and energy expenditure during intercourse. Additionally, there are factors related to hormones, the tendency towards orgasm, and so on.
The energy expenditure from sexual acts, from cuddling and caressing to actual intercourse, is significant. The greater the desire, the more the sexual activity increases. Therefore, men put all their energy into the “lovemaking” actions, which results in high energy consumption.
2. Reasons why he falls asleep after “sex”
Firstly, sexual intercourse often occurs at night, which is also the time when people tend to fall asleep after a hard day of work. Thus, it is natural for men to fall asleep after sexual activity.
Secondly, according to some studies using imaging techniques, it has been shown that men often achieve orgasm after intercourse, which helps them forget fears and anxieties. As a result, men tend to relax and tend to fall into a deep sleep.
Thirdly, the cause is that men release certain hormones after achieving orgasm. These hormones include the release of endorphins, serotonin, oxytocin, vasopressin, nitric oxide (NO), and prolactin. These hormones lead to relaxation, stimulating deeper sleep, better sleep, more comfort,… among which oxytocin and vasopressin reduce stress levels, which can once again lead to relaxation and drowsiness.
Fourthly, men’s deep sleep is closely related to the hormone prolactin. Sexual satisfaction in men stimulates the brain to release prolactin, resulting in higher natural prolactin levels during sleep. This makes men feel sleepy. Additionally, prolactin also explains why men feel sleepier after intercourse than after masturbation. For reasons not fully understood, orgasm during intercourse releases prolactin four times more than orgasm from masturbation, according to a recent study.
Fifthly, during intercourse, men often hold their breath or breathe heavily, which reduces the oxygen supplied to the body. Therefore, this factor stimulates feelings of drowsiness.
Men often sleep very soundly after sex, which can sometimes leave their partners feeling a bit disappointed and sad because women’s psychology often wants to be cared for, cherished, and enjoyed. Especially after sexual intercourse, they want more caresses and cuddling, and rarely take the initiative to approach their partner.
However, the phenomenon of deep sleep in men is a normal physiological occurrence. Therefore, deep sleep cannot serve as a basis to assess the feelings of gentlemen as superficial or indifferent. Their love for their partner always begins with daily gestures of care and attention.
