A radio pulsar is like a cosmic lighthouse, a highly dense, rapidly rotating star that emits beams of radio waves. If Earth ...

Here's how to correctly identify a heart attack and properly react during a heart emergency, according to cardiologists.

Walking is one of the best forms of exercise you can choose, but in order to be beneficial, you have to walk fast enough to ...

A 46-year-old man with a history of diabetes and hyperlipidemia presents to his primary care provider for a routine physical ...

Atrial fibrillation, or A-fib, is the most common type of arrhythmia, affecting at least 2.7 million people in the United States. This number is expected to grow to more than 12 million by 2030, which ...

"It may never come back." Researchers issue warning on troubling phenomenon impacting Earth's poles: 'Rhythmic pulse' first ...