But it's not just awkwardness-doctors now know that teenagers' body clocks go through a shift during puberty, meaning they find it hard to sleep before 11 p.m. and hard to wake in the morning.
But it's not just awkwardness-doctors now know that teenagers' body clocks go through a shift during puberty, meaning they find it hard to sleep before 11 p. m. and hard to wake in the morning.