Progressive relaxation, also known as body scan meditation, is meditation that encourages individuals to scan their bodies for areas of tension. The aim is to notice tension and then to allow it to release.

In progressive relaxation session, practitioners start at one end of their body, usually their feet, and work through the entire.
Some kinds of progressive relaxation require people to tense and then relax muscles. Others encourage any individual to imagine a wave, drifting over their body to release tension.
Progressive relaxation can help to promote generalized feelings of calmness and relaxation. Also it might assist in chronic pain. Since it slowly and steadily relaxes the human body, some people use this form of meditation to help them sleep.
Author Resource Box:
https://www.medicalnewstoday.com/articles/320392.php#types-of-meditation