Health and religions are two different things. Health depends on your food habits and how you are living your life on daily basis. Whereas religion is something which got associated with you from birth. Depending on the religion some food habits are being defined - Veg or Non Veg.
Though entirely different between the two, Their are some religions who are able to cure so many ailments in the human body, I have seen crippled people walk, the blind see, cancer being cured and a whole lot of diseases being cured by the name of Jesus.
If in Islam worship is the same as maintaining health because in every movement that prayer can be called with sports,,. If we know how the movement of prayer is the same as the movement of airobik / gymnastics ..
And it can burn fat calories in the body, plus we are required to do that in 5 times in the same day., and each one of 5 there are 2 to 4 repetitive movements