Answer: emotional well being
Explanation:
well there are three differnt factors but emotional is probably gonna be the most important for mental health
The stomach lining replaces mucus itself every few days
By components do you mean organs? If so...
1. Brain - gives demands ands orders to all of the body to function properly
2. Heart - pumps blood, and keeps the organism receiving the blood alive
3. Skin - protects the tissue from UV Rays that may be harmful