That is why it is so important to get enough sleep so that it has time to do all these things. Humans are meant to sleep at night. Our bodies know it’s time to sleep when it gets dark.

But just like how many times is normal to get up in the middle of the night (or to pee), the number of hours we should aim to sleep for do change slightly by age. How many hours should I sleep ...

Dolphins can swim with one hemisphere asleep while the other is alert, and some neurons in sleep-deprived rats can “switch off” while the animals are still awake. In humans, this so-called “local ...

We’ve mentioned above that a lot of “healthy” habits vary from person to person, so if your current sleep routine is leaving you refreshed and alert, then you should stick to it. With that ...

But just like how many times is normal to get up in the middle of the night (or to pee), the number of hours we should aim to sleep for do change slightly by age. We’ve mentioned above that a lot of ...