Video Segment from Part 1A

Principle 2: Biochemical Health - How we sleep
Sleep has long been known as a way for the body to rebuild, replenish, and recover. A healthy body operates on an internal biological clock, often called the body clock, sleep-wake cycle, or circadian rhythm. In this segment Brian will briefly teach you what it is, how it works and why it's important.

Video Link to Part 1A
https://rumble.com/v74iku2-viewing-the-entire-body-as-an-interactive-system-of-systems.html