Why do my eyelids twitch when I’m tired?

Some theories in evolutionary psychology propose that men are better at spatial navigation than women due to evolutionary factors. In prehistoric times, men, as hunters, traversed long distances, while women stayed closer to the home. This difference supposedly led to natural sel ...  Show more

According to the American Academy of Sleep medicine, 50% to 85% of adults experience occasional nightmares, with 2% to 8% of people having nightmares that cause sleep problems. No one likes having nightmares, do they? These vivid, distressing bad dreams often cause us to jolt awa ...  Show more

It's not necessarily fun (nor on purpose), but yes, some people sleep with one or both eyes partially open. Learn how nocturnal lagophthalmos works in this episode of BrainStuff, based on this article: https://health.howstuffworks.com/mental-health/sleep/disorders/can-fall-asleep ...  Show more

Have you ever started to fall asleep and then suddenly – whoa! – you jolt awake? What’s up with that? We asked sleep specialist Chris Winter to help us find the answer. Got a question that has you losing sleep? Send it to us at BrainsOn.org/contact, and we’ll pull an all-nighter ...  Show more

What is circadian rhythm? How often is OK to pull an all-nighter? What's the actual meaning of the word "knackered"? And what are some of the things you can do to fall asleep? Tune in and have a great day! - IELTS Speaking for Success PREMIUM: https://linktr.ee/sfspremium Tra ...  Show more

Have you ever woken up in the morning with the corners of your eyes filled with crud? Sleepy sand? Eye goblins? Dozy dust? Bed boogers? Why do our eyes make this stuff, anyway? And why does it build up when we’re asleep? We asked Yale eye doctor Soshian Sarrafpour to help us get ...  Show more