Can Humans Change Their Sleep Cycle?
Episode 6 | 8m 3s | Video has closed captioning.
Have you ever wondered why some people are early birds, and others are night owls? Are you the type who always falls asleep at 8 pm no matter what, or do you stay awake until 2 am finishing work? It really gets you thinking-Why DO we have sleep.
Problems Playing Video? | Closed Captioning