Why Do Some People Have Extremely Realistic Dreams?
Extremely realistic dreams usually come from vivid REM sleep, the stage when your brain is most active, combined with triggers such as stress, lost sleep, medications, or hormonal changes. Some …
Why Some People Fall Asleep the Second Their Head Hits the Pillow
You’ve probably seen it happen: someone lies down, closes their eyes, and within a couple of minutes they’re completely out, while you’re still lying there running through your mental to-do …
Why Some People Never Seem to Get Jet Lag
You land after a ten-hour flight across six time zones, and while you’re squinting through the fog of exhaustion trying to remember what day it is, the person next to …
Why Some People Remember Their Dreams Vividly and Others Never Do
Some people wake up and can walk you through an entire dream in detail, complete with a plot, dialogue, and a strange cast of characters that somehow made total sense …
Why Some People Snore and Others Never Do
Every household with more than one person seems to have a designated snorer, the one whose nighttime soundtrack is loud enough to be a running joke, or occasionally a real …
The Genetic Link Between Sleep Talking and Family History
Somebody in your life has probably told you that you said something completely bizarre in your sleep, or maybe you’re the one who’s caught a family member holding a full …
The Genetic Reason Some People Wake Up at the Same Time Every Day, No Alarm Needed
You’ve probably met someone who insists they haven’t used an alarm clock in years. Every morning, like clockwork, their eyes open at almost exactly the same time, whether it’s a …
The Genetic Reason Some People Need Total Darkness to Sleep
Some people can fall asleep in front of a TV that’s still playing, lights on, no problem at all. Others need blackout curtains, the alarm clock display taped over, and …
The Genetics of “Short Sleepers” Who Thrive on 5 Hours a Night
You probably know someone who claims they only need five hours of sleep, bounces out of bed energized, and somehow never seems to crash by mid-afternoon. Most of the time, …
The Genetics of Sleepwalking
Somewhere in most extended families, there’s a sleepwalking story. A cousin who was found rearranging the kitchen at 2 a.m., a sibling who once tried to leave the house in …