Sleep

Sea anemones and jellyfish don’t have brains, but the way their neurons behave during sleep shows some surprising similarities to humans

Psychological data and brain scans show how sleep can improve our lives, our bodies and our relationships

Melatonin supplements have become a ubiquitous sleep aid, but research shows that benefits are modest, and the heart health effects of long-term use are unknown

A new study suggests that permanent standard time may reduce obesity and stroke

Washing waste from the brain is an essential function of sleep—and it could help ward off dementia

Neuroscientists have found that the brain can wake up in different ways, explaining why some mornings feel like a dream and some feel like a disaster

A sleep medicine specialist explains how restless nights lead to consuming more calories and how you can use sleep as a tool for weight loss

When insomnia took hold of this journalist, she relied on her science reporting to find a medication that (mostly) worked

Drugs that target wakefulness, molecules in cannabis and wearable devices that modulate brain activity could help people with insomnia

Snoring indicates oxygen reduction, but a variety of treatments can restore healthy airflow

Scrolling on social media at bedtime is particularly disruptive to sleep. Here’s why

People on TikTok and other social media say they feel more alert when they have had fewer hours of sleep—but sleep scientists warn this is a false sense of energy