“Why do we sleep? To clean our brains, say US scientists,” The Guardian reports. A US research team, studying mice, has suggested sleep helps clear the brain of ‘waste products’.

Although sleep is an intrinsic part of our lives, scientists are still uncertain why a good night’s sleep makes us feel better or why lack of sleep is bad for us.

Now a US research team claims to have found at least part of the answer. The study looked at whether sleep influences how the brain removes its waste products.

via Researchers claim that sleep detoxes the brain – Health News – NHS Choices.