Lactic acid builds up in muscles during intense exercise and causes a burning sensation. However, it is not responsible for next-day muscle soreness.

If you’re lucky enough to live to 80, you’ll take up to a billion breaths in the course of your life, inhaling and exhaling enough air to fill about 50 Goodyear blimps or more. We take about 20,000 ...

You know breathing is always critical. Your body’s cells need oxygen to function, and you need to release carbon dioxide, a waste gas, through exhalation. When you run (or participate in any other ...

Respiree, a med tech spinoff of Singapore's Agency for Science, Technology and Research, has obtained the United States Food and Drug Administration's 510(k) clearance for its wearable ...

In this episode of Crash Course Botany, we’ll explore how the processes of photosynthesis! Plants and trees may seem pretty passive, but behind the scenes, their cells are working hard to put on a ...

The back consists of large, complex muscles that support your trunk and spine. There are many types of back muscles, and they are all essential, helping you walk, bend, twist, and hold your body ...

Diedre Douglas, EdD, is a Les Mills US presenter and fitness instructor. The erector spinae are a group of rope-like muscles that run up and down the sides of your spine. They’re largely responsible ...