Cortisol is a hormone your adrenal glands produce that helps govern your circadian rhythm (your body’s internal clock).

You know the feeling: lying in bed, wide awake, your mind racing. You’ve heard all the advice—don’t drink caffeine late, avoid screens, stick to a routine—but none of it works. The culprit might not ...

Should we all be concerned about our cortisol levels? I took a blood stress test and spoke with experts to find out.

Cortisol face, a trending term on TikTok, suggests stress hormones cause facial puffiness. We separate the viral myths from ...

It's no secret that a good night's sleep plays a vital role in mental and physical health and well-being. The way you feel ...

Most of us know that following an unhealthy diet, smoking, drinking too much alcohol and having high blood pressure and/or cholesterol can increase your risk of heart disease.

Exercise improves sleep quality and helps treat sleep disorders by regulating circadian rhythms, reducing stress, and ...

A new study showed that people who took longer to enter this dream phase of sleep had higher levels of amyloid beta and tau, ...

Taking longer to enter the dream phase can disrupt the ability to consolidate memories and interfere with emotion regulation.

Learn about seemingly harmless bedtime habits that might be sabotaging your sleep quality and discover how to adjust your ...

A study suggests delayed REM sleep could indicate early Alzheimer's, showing increased amyloid clumps and tau tangles in the ...