There is this belief circling around in society that older people tend to wake up earlier in the morning, and the older we get, the earlier we wake up! It turns out that this is not just a myth or a funny observation, but the actual truth for many seniors. If you're one of those people who can't explain why you just wake up naturally at 5 AM or even earlier every morning, you'll be relieved to find out that there are several scientific explanations of this phenomenon, and this video goes through most of them.
