Morning erections: Why men get them and when changes could signal a health issue
Commonly called "morning wood", these are a normal part of male biology. But sudden changes in their frequency may sometimes point to erectile dysfunction or other health issues.
Morning erections, commonly referred to as "morning wood," are a natural part of male biology. In fact, grown men often experience three to five erections while asleep, unaware of them. These episodes, known as nocturnal penile tumescence, are essential for maintaining male physical and sexual health. However, a decline in the frequency of morning erections or their absence could signal a potential health issue.
There are four key conditions required for an erection to occur: pipes, wires, hormones, and mood. The "pipes" or blood vessels in the penis must be in good working order, with no leakage or blockage. The "wires" or nerves supplying the penis must also be functional, as damage from surgery, injury, or neurological conditions can prevent the "switch" from turning on.
Testosterone, the main driver of libido, is crucial for initiating erections. Low testosterone levels act like a faulty on-off switch, failing to trigger erections even when the pipes and wires are functioning correctly. Finally, mood plays a significant role, as stress, fatigue, emotions, or surroundings can all affect the ability to achieve an erection.
The average duration of an erection is difficult to quantify, as it varies between sexual and non-sexual erections. However, an erection lasting more than two hours is considered abnormal and requires treatment, as penile tissue requires fresh oxygenated blood.
During sleep, the body continuously floods the spongy tissues in the penis with blood, providing essential oxygen and nutrients. This nightly rush of blood maintains the tissue's elasticity and prevents scarring or structural damage. Testosterone is released in pulses during sleep, starting from around 3 am to 8 am. Men typically experience between four to six periods of REM sleep in a typical night, resulting in a similar number of nocturnal penile tumescence episodes, with most men experiencing three to five nightly erections.
Adequate sleep is vital for maintaining these nocturnal erections. Men who lack sufficient sleep or suffer from chronic sleep disorders may experience a decrease in these erections. Testosterone levels peak between 6 am and 10 am, causing men to experience morning erections, often referred to as "morning wood." Doctors schedule testosterone checks early in the morning to avoid false readings.
Interestingly, morning erections can also occur in prepubescent boys due to neurological reflexes, which are involuntary bodily functions. Even male babies and toddlers experience higher testosterone levels in the womb and after birth, which help their reproductive organs mature. As a result, observing morning erections in younger children is entirely normal.
Written by urgent.news from Channel News Asia's reporting — not their text. Machine-written — may contain errors; check the original before relying on it.
