Health and religion are closely connected. If someone are capable of following religious principle then health would be Hazard less, every religion offer a pleasant routine for human being.
Religion principle suggest us to live in a happy life. early rise, prayer, seeking work for surviving and come back to family after completing work. All these things suggested by religion.
Mental health is the key of leading healthy life. So religious principle should be followed.
Can in fact still remember some rites and strict fasts in Orthodoxy, then at least starvation benefit brings health. But if you look to all the servants of the Church who have a weight of Not less than 100 kilograms, you begin to doubt their devotion to religion.