It is becoming increasingly clear that getting enough sleep is vital for our physical and mental well-being. Now, sleep scientist Matthew Walker and others have shown how getting enough sleep is also one of the most important things you can do to protect your brain from Alzheimer’s disease.
What horrors lurk in our subconscious? According to a new French study – believed to be the largest into the subject – on sleep-talking and what we say when we’re asleep, researchers found the most commonly used word is “no”, and the French swearword “putain” occurred, reports the Times, “800 times more often in sleep than when awake”.
You probably don’t need scientific evidence to know that lack of sleep makes a person very cranky. And the fact that regular sleep has such a huge impact on a person’s mood is reason enough to make it a priority.
The cycle of day and night on our planet is age-old and inescapable, so the idea of an internal body clock might not sound that radical. In science, though, asking the questions “why?” and “how?” about the most day-to-day occurrences can require the greatest leaps of ingenuity and produce the most interesting answers.
No one seems to get enough these days, but rest is how the human body recovers. About a third of Americans are chronically sleep deprived. The Centers for Disease Control and Prevention reports that 35 percent of adults don’t get enough sleep on a regular basis.
Certain visual learning takes hold in the brain during sleep, new research suggests. Remember those “Magic Eye” posters from the 1990s? You let your eyes relax, and out of the tessellating structures, a 3D image of a dolphin or a yin yang or a shark would emerge.
Sleep spindles, a type of brain activity recorded during stage two of sleep, has repeatedly been associated with improving brain plasticity and consolidating memory. Scientists are now drawing closer to explaining the mechanism behind this effect. It is known that sleep is vital to our normal daily functioning, and that a lack of proper nightly sleep can seriously affect our cognition and general well-being.
At the bottom of many of the health issues attributed to sleep loss lies a hidden epidemic of dream loss, according to a newly published review of data. The paper, by Rubin Naiman, PhD, a sleep and dream specialist at the University of Arizona Center for Integrative Medicine, describes the diverse factors that cause rapid eye movement (REM) sleep and dream loss.
Millions of Americans will have a hard time falling or staying asleep tonight, and research says most of them will be women. “Insomnia is definitely more common in females, and it seems to begin fairly early on,” said Dr. Meir Kryger, a professor at the Yale School of Medicine who studies sleep.
Too little sleep is making us sick. In an interview with The Guardian, Matthew Walker, Director of the Center for Human Sleep Science at the University of California, Berkeley, explains how. Through his work, he’s determined that people who don’t get enough sleep tend to be less healthy and have lower energy levels than those who get the recommended amount of shut eye per night.