Sleep

Letters to the editor for the April 2022 issue of Scientific American

Putting off sleep can have unfortunate consequences

Scientists are less enthusiastic than the U.S. Senate about DST year-round

Waking yourself from the twilight state just before sleep may help you to solve a challenging problem, a study shows

And the benefits of two four-minute sessions persisted for hours

Researchers demonstrate that during REM sleep, people can hear—and respond to—simple questions such as “What is eight minus six?”

Bee larvae and pupae appear to secrete a chemical that does the work of a late-night cup of coffee for their nurses.

Anxiety about social distancing and infection is altering how much we dream and the nature of our dreams themselves

Originally published in March 1880

Do you really need eight hours of sleep each night to thrive? Savvy Psychologist Dr. Jade Wu breaks down the eight-hour sleep myth and offers three ways to find the best sleep for you

Slow-wave activity during dreamless slumber helps wash out neural detritus

There’s a connection between sleep and hunger. Getting better quality sleep may help with appetite, cravings, and ultimately, weight loss