People often discuss the importance of removing, or “flushing out,” lactic acid from the blood after intense exercise to ...

Vulcans' unique physiology means their blood appears green instead of red, like humans in the Star Trek franchise.

For over a century, scientists believed that light, focus distance, and cognitive effort were the main forces behind changes in pupil size. But a new discovery adds breathing to that list. Researchers ...

Embolic strokes, a common type of stroke, are caused by blood clots traveling to the brain and starving brain tissue of blood and oxygen. Veins, on the other hand, get larger as they return blood to ...

Running and swimming are both great cardio forms. Here's which one to do if you want to build strength, lose weight, and ...

Half of people in the UK have never had a blood pressure reading done - meaning they could be living with a time bomb ...

Most likely, the first thing that springs to mind when you hear the phrase "skipping rope workout" is your early playground ...

Without adequate blood flow, the tissues of the body will be deprived of oxygen and nutrients needed to function normally. An inadequate supply of oxygen to the tissues — referred to as tissue hypoxia ...