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  2. Nocturnal penile tumescence - Wikipedia

    en.wikipedia.org/wiki/Nocturnal_penile_tumescence

    The goal of nocturnal penile tumescence testing is to determine whether one can experience an erection while sleeping after reporting that they are unable to experience an erection while awake. On average, one has 3–5 episodes of NPT each night, and each episode lasts 30–60 minutes, although the duration is reduced with advanced age. [16]

  3. Hypnic jerk - Wikipedia

    en.wikipedia.org/wiki/Hypnic_jerk

    A hypnic jerk, hypnagogic jerk, sleep start, sleep twitch, myoclonic jerk, or night start is a brief and sudden involuntary contraction of the muscles of the body which occurs when a person is beginning to fall asleep, often causing the person to jump and awaken suddenly for a moment.

  4. Nocturnal emission - Wikipedia

    en.wikipedia.org/wiki/Nocturnal_emission

    Due to the difficulty in collecting ejaculate produced during nocturnal emissions, relatively few studies have examined its composition. [4] [5]In the largest study, which included nocturnal emission samples from 10 men with idiopathic anejaculation, the semen concentration was equivalent to samples obtained from the same men by penile vibratory stimulation, although the proportions of sperm ...

  5. At What Age Do Men Stop Being Intimately Active? - AOL

    www.aol.com/lifestyle/age-men-stop-being...

    In short, most men remain well into retirement age, with the majority of intimately active senior men happy with their intimate lives. Male Libido and Age Libido tends to decrease with age in men ...

  6. Why Do Men Take So Long in the Bathroom? A Scientific ...

    www.aol.com/why-men-long-bathroom-scientific...

    Gleb Kosarenko/Getty Images Your 5-year-old just spilled a full eight ounces of milk all over the floor and neither one of you is too pleased about it. But just as you start to reach for a wad of ...

  7. Death erection - Wikipedia

    en.wikipedia.org/wiki/Death_erection

    Death by hanging, whether an execution or a suicide, has been observed to affect the genitals of both men and women. In women, the labia and clitoris may become engorged and there may be a discharge of blood from the vagina [ 5 ] while in men, "a more or less complete state of erection of the penis , with discharge of urine, mucus or prostatic ...

  8. Night owl - Wikipedia

    en.wikipedia.org/wiki/Night_owl

    A Young Man Reading by Candlelight, Matthias Stom (ca. 1630). A night owl, evening person, or simply owl, is a person who tends or prefers to be active late at night and into the early morning, and to sleep and wake up later than is considered normal; night owls often work or engage in recreational activities late into the night (in some cases, until around dawn), and sleep until relatively ...

  9. Why do men take so long to poop? The answer is complicated.

    www.aol.com/lifestyle/why-men-long-poop-answer...

    There are many reasons why men spend more time on the toilet, but struggling to poop isn’t likely one of them.