According to the recording, what are “melatonin” and “serotonin”?

Melatonin is a hormone primarily released by the pineal gland at night and has long been associated with control of the sleep–wake cycle.

Serotonin is the key hormone that stabilizes our mood, feelings of well-being, and happiness. This hormone impacts your entire body. It enables brain cells and other nervous system cells to communicate with each other. Serotonin also helps with sleeping, eating, and digestion

Explanation:

d yoga because yoga makes your bones very strong

answer; /// i believe its the cochlea;