Everyone has trouble falling or staying asleep from time to time. But for the three to five percent of the general population with primary or chronic insomnia, the issue persists for a month or more, for no clear reason. Having insomnia for that long can make you feel sleepy and irritable during the day and cause memory problems or even anxiety and mood disorders.
Some children with attention deficit hyperactivity disorder (ADHD) who take stimulant medications to treat their symptoms may develop sleep problems, according to a new analysis of previous research.
People who get at least 8 hours of sleep each night are more likely to have good heart health than those who get less sleep, a new study finds.
Sleeping with only half your brain sounds like a great way to become a zombie in no time, but for certain marine mammals and birds, it’s a way of life. A new study suggests that crocodiles, too, may be “unihemispheric” sleepers, a finding which makes humans and other full-brain snoozers look more and more like evolutionary oddballs.
Our bodies aren’t meant for space. We require too much maintenance to speed through the stars. We need a steady supply of things absent from space — namely water, food and oxygen. We crave warmth but won’t find it in deep space, where the average temperature is -455 degrees Fahrenheit. Even if we could survive in an icy vacuum without sustenance, we’d probably go insane without distractions and room to move.
There’s a new reason to go to bed on time: late nights, in addition to a multitude of health effects, may lead to obesity and diabetes.
Countless studies have shown the negative effects of sleep loss and sleep deprivation, but a new one from a Swedish team suggests that even one night of missed snoozing can have long-lasting effects on your genes.
If you try to function normally after you’ve pulled an all-nighter, your eyes start to drift shut no matter how much you try to keep them open. But what happens in the brain during those all-too-few blissful seconds of rest? While some parts of the brain behave the same way they would if you were settling in bed for the night, other areas reflect the unique tug-of-war between sleep and wakefulness, according to a paper published recently in the journalNeuroimage.