Tired of feeling tired? You're not alone. Dr. Amy Shah, author of the book “I'm So Effing Tired,” joins TODAY’s Jenna Bush ...

Findings indicate that low hydration is associated with increased cortisol spikes during stress, potentially influencing long ...

New study shows that staying hydrated reduces levels of cortisone — a hormone that helps regulate blood pressure, reduce ...

A regular sleep schedule is key to training your circadian rhythm, so going to bed and waking up at the same time daily helps ...

This article was reviewed by Lynn Marie Morski, MD, JD Can Mold Cause Hair Loss When you think of the usual suspects behind ...

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Scientists find stress hormones can boost retrovirus activity in koalas, leaving them more vulnerable to chlamydia and other ...

Research indicates that inadequate hydration elevates cortisol levels during stress, potentially increasing the risk of heart ...

Almost half of people in the UK don't get enough sleep.

Feeling fear is an evolutionary survival tactic. A small number of people have a rare condition that means they're not scared ...

Hayden Panettiere shared a touching post to honor her late brother Jansen on what would have been his 31st birthday. The ...