There is a shift in the timing of your circadian rhythms. Before puberty, your body makes you sleepy around 8:00 or 9:00 pm. When puberty begins, this rhythm shifts a couple hours later. Now, your body tells you to go to sleep around 10:00 or 11:00 pm.
Describe the shift in circadian rhythms that occurs during puberty. ... The natural shift in a teen's circadian rhythms is called "sleep phase delay." 4. What is insomnia? Insomnia is when you either can't fall asleep stay asleep or have trouble waking up in the morning.
