Welcome to this great community. I saw you mentioned mental and physical health and drugs, I want to say a few things about that based on what I think I have learned during my time here.
I'm starting to think that mental and physical health are the same thing. They are integrated. You eat addictive fat and sugar and you brain changes, making you a lot more likely to become a couch potato. If you work out, you release endogenous drugs that in turn affect your brain, etc.
Also, I'm arriving at the conclusion that drugs are an essential part of health. There is no such thing as not taking drugs. Look at serotonin and psilocibin below. Can anyone say with a straight face "I don't take drugs" with a brain soaked in serotonin? I heard that praying can change serotonin levels, so in a deep fundamental way, praying is like taking drugs.
We are an integrated chemical and spiritual entity. Phyisical, mental, Spiritual health are all interrelated with each other and trough the drugs and chemicals we either produce in our body's or the ones we eat.
Recent research has shown the positive neurological effects of psychedelics (increased dentritic growth and development of). These observations partly explain the outcomes of other research measuring improvement to depression and reduction to tobacco addiction.
Below are diagrams of serotonin (endogenous for humans) and bufotenin (endogenous other life forms). Anyone who says "I don't use drugs" should maybe rethink this statement after simply looking at the two molecules.
Loveall attached the following image(s):
1280px-Serotonin-Spartan-HF-based-on-xtal-3D-balls-web.png
(185kb) downloaded 40 time(s). Bufotenin-3d-sticks.png
(115kb) downloaded 41 time(s).