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

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 ...

Rowing machine muscles worked include the quads, glutes, triceps, and more, making it a great whole-body workout. This heart-pumping, high-intensity exercise activates many of the muscles that are ...

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 ...