What causes chronic fatigue syndrome? From viral infections to immune disorders, discover the triggers and symptoms behind ...

Hormones like testosterone, cortisol, melatonin, and more directly influence men’s mood, energy, and sleep quality. Hormonal ...

ME/CFS is a neurological condition characterized by malaise. Diagnosis requires ruling out other systemic illnesses.

Use this 2-minute burpee test to see where you rank after 45, plus tips to improve technique, power, and conditioning.

This winter, medical experts guide you through the latest diagnostic standards, the non-deficiency causes of fatigue, and the practical steps you can take ...

Men face higher chronic disease rates after 40. Learn which medical tests doctors say are vital for preventing heart attacks, ...

Better ways to measure cognitive exhaustion could point to treatments for long COVID and other debilitating disorders.

Common weight loss blood tests might include thyroid function tests (TSH, free T3, free T4), blood sugar and insulin markers ...

Persistent cough, fatigue or brain fog during winter may not be seasonal. Toxic metals in polluted air can build up silently ...

Know which medical tests help identify the real causes of frequent mood swings, from hormone and thyroid checks to ...

"I think I was doing it a little bit intentionally because I bowled more than 70 overs (in one match),\" Shakib told the ...