The Wall Street Journal:
Many parents know the scene: The groggy, sleep-deprived teenager stumbles through breakfast and falls asleep over afternoon homework, only to spring to life, wide-eyed and alert, at 10 p.m.—just as Mom and Dad are nodding off.
Fortunately for parents, science has gotten more sophisticated at explaining why, starting at puberty, a teen’s internal sleep-wake clock seems to go off the rails. Researchers are also connecting the dots between the resulting sleep loss and behavior long chalked up to just “being a teenager.” This includes more risk-taking, less self-control, a drop in school performance and a rise in the incidence of depression.
One 2010 study from the University of British Columbia, for example, found that sleep loss can hamper neuron growth in the brain during adolescence, a critical period for cognitive development.
Read the whole story: The Wall Street Journal