Constantly tired? A simple factor may be contributing to your inability to find high-quality sleep. Here's what to know.

Add Yahoo as a preferred source to see more of our stories on Google. At one point or another, everyone will experience acute moments of insomnia. Here's what to do when you can't sleep. (Getty Images ...

Everyone has the occasional bad night’s sleep, but when could persistent tossing and turning in bed point to something more serious like insomnia? We spoke to Jason Ellis, professor in psychology at ...

We suspect a patient fulfills insomnia disorder when they report three or more nights per week where it takes more than 30 minutes to fall asleep and/or return to sleep for at least three months. To ...

Sign up for CNN’s Sleep, But Better newsletter series. Our seven-part guide has helpful hints to achieve better sleep. With an early meeting in the morning, I had ...

We’ve all been there—mind racing, tossing and turning, trying to pretend like it’s not 3 a.m. and you don’t have to get up for work in three hours. Trouble sleeping affects up to 30 percent of the ...

Can't sleep? Gut bacteria, social jet lag and bedroom temperature may be the real culprits. Here's what the research says.

A new study published in the journal BMJ Evidence-Based Medicine has shown that exercise, particularly Tai Chi, yoga, and jogging, is effective for improving sleep and combating insomnia. The study ...

The distinctive difference between CBT and CBT-I is the inclusion of principles and practice of sleep medicine.Photograph: Klaus Vedfelt/Getty Images You might have heard of cognitive behavioral ...

The landscape of sleep medicine has evolved significantly, with insomnia emerging as a critical focus in healthcare. Modern understanding of this sleep disorder has revealed its complex nature and far ...

We were joined by insomnia specialist Kathryn Pinkham for a live Q&A on all things sleep. Here, we share her wisdom including ...

Hypothyroidism caused by Hashimoto thyroiditis may contribute to insomnia and affect your sleep cycle in multiple ways. Managing hypothyroidism and practicing good sleep hygiene may reduce sleep ...