The nuclear stress test can show how blood flows through your heart muscles. This reveals how well the heart pumps blood and areas of your heart muscles that do not get enough blood. Nuclear stress is ...

Scientists in the United Kingdom say they have developed a blood test that can diagnose myalgic encephalomyelitis/chronic ...

Your doctor may recommend the creatine phosphokinase (CPK) test if there's a need to measure CPK enzyme levels in your blood. The cells in your body require this creatine kinase enzyme to generate ...

Testosterone is the quintessential male hormone (androgen), and it’s a busy one, helping to regulate intimate function, ...

A foot stress fracture can happen in an instant or gradually get worst with time. But it usually starts with a flinch – something that doesn’t feel right in your foot – then a sinking feeling in your ...

The question of whether men over 50 can still build muscle concerns many fitness enthusiasts. It’s a widespread misconception ...

Though my cortisol test results stressed me out, I'm glad I know more about how cortisol affects my health. Anna Gragert (she/her/hers) was previously the lifestyle editor at HelloGiggles, deputy ...