When Puberty Ends
I heard a 23-year-old woman complain: “I must be getting old when 11:00 at night is late.” It got me thinking.
It turns out that the explanation for why teens are natural night owls has recently been elucidated. They can’t help it — they just don’t get tired until way later in the evening. Then, of course, their bodies want to stay asleep well into the next morning in order to feel sufficiently rested. Since most of them are stuck with the artificial structure of school hours, they’re screwed — and condemned to suffer constant fatigue from cumulative sleep deprivation. Old news.
Then I started wondering about the back end of this phenomenon. Even though our American “youth culture” attributes great coolness to late-night happenings, since this pubertal sleep shift is biological, there must come a point at which their pineal glands go back to releasing melatonin at a more reasonable hour. Does 10 years sound about right? I remember not being nearly as enamored of the “all-nighter” by the time medical school rolled around, as opposed to college, where staying up all night was a regular occurrence. Certainly by residency (ages 26 to 30), it was a killer. Read more »
*This blog post was originally published at Musings of a Dinosaur*
