It helps. But also check your mental health.
Yes holistic is the way.
Unless you have a serious mental health problem. Bipolar, schizophrenia etc… most people can solve their ordinary misery with exercise and nutrition.
Most health problems in general can be managed with diet and exercise. Type 2 diabetes can be reversed, as can most non-genetic forms of heart disease, etc.
Ordinary misery, or "feeling down", is not the same as clinical depression.
Yeah absolutely. A lot of people who have never experienced severe depression cannot really understand how it can affect someone.