Proverbs 17:22 - A merry heart does good like a medicine:
Joy, peace, health

Proverbs 17:22 - A broken spirit dries up the bones:
Brittle bones, allergies, fear

Proverbs 12:4 - Shame to a husband is rottenness to his bones:
When women shame their husbands, it can produce health issues in a husbands bones

Proverbs 26:2 - A curse causeless shall not come:
There is a reason to everything that happens. Take a look at Deuteronomy 28 to see the list of diseases - these are listed as curses

Proverbs 14:30 - Envy is rottenness to the bones:
Another bone disease

Proverbs 4:24 - Critical and perverse lips:
Bitterness, strive and every evil thing

Proverbs 12:1 - He that hates reproof shall die:
Not much clearer than that. The body begins dying at the cellular level. We have time to get things right in our heart long before final death happens.

Proverbs 16:20 - He that trusts in the Lord happy is he:
When we truly trust God, we will have peace and peace produces health and health produces happiness

Proverbs 18:21 - Death and life are in the power of the tongue:
Our words do matter, it can cause others to feel good or to feel terrible which can, if long term, produce illness.