Before a stress test, you’ll need to avoid food, drink, tobacco, and caffeine for a time. You may also have to stop taking some medications. Your doctor will provide information specific to you, but ...

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 ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. It’s designed to help doctors evaluate the ...

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 ...

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

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

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

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 ...