If your weekly schedule looks like a jigsaw puzzle, squeezing in both cardio and strength training can be tough. Instead of ...

Elevated levels of expiratory carbon monoxide are linked to an increased risk for 1-year all-cause death in patients ...

Authorities say the 911 caller reported symptoms of a heart attack before dispatchers realized the actual issue.

Researchers from the University of East Anglia and biotechnology company Oxford Biodynamics have developed a new blood test for diagnosing ME/CFS with 96% accuracy.

A Minnesota woman called 911 because she thought she was having a heart attack. Then, her husband started seizing.

Persistent fatigue, mental fog, and weakness may be more than just signs of a busy lifestyle—they can indicate a vitamin B12 deficiency. Essential for red blood cell production, nerve health, and DNA ...

Dark muscle in fish, often reddish-brown or gray, is a normal anatomical feature rich in fat and oxygen-binding proteins.

Understanding your heart rate is crucial for more than just reaching optimal fitness–it can also help to reduce injury and ...

About 2 billion people worldwide are deficient in iodine. Here's how to know if you have a deficiency and treat it with foods ...

British spending on credit and debit cards rose 8 percentage points last week, although it was still 24% below its level a year ago, with the country in its third national coronavirus lockdown, ...