Delayed sleep phase syndrome (DSPS) is a most prevalent circadian rhythm sleep disorder and is marked by a delay in the timing of sleep episode compared to desired or necessary sleeping and wakeup ...

Your DNA has a big impact on your sleep. It determines your circadian rhythm and even predisposes you to some sleep disorders. Taylor Leamey wrote about all things wellness for CNET, specializing in ...

Medically reviewed by Allison Herries, RDN Key Takeaways Melatonin is a hormone that regulates your circadian rhythm and ...

Before I was diagnosed with bipolar disorder, I didn’t think twice about sleep. I’d always been a night owl, but I went to bed reasonably early. And I never had trouble falling asleep or getting eight ...

Insomnia isn’t just a result of late nights or poor habits; it’s often a sign of something deeper. If you find yourself wide awake despite feeling tired, there could be an underlying medical reason.