Teenagers naturally fall asleep later, which makes early school start times a recipe for chronic sleep deprivation. Researchers studying a Swiss high school that introduced flexible start times found that students overwhelmingly chose to begin later—and ended…
Many high school students find it hard to fall asleep early, which makes waking up for early morning classes a challenge. The reason lies in biology. During adolescence, the body's internal clock nat… [+4029 chars]
