Cleanliness is the first requirement. Cleanliness includes banishing the idea of grabbing another's property. As soon as we cheat somebody, our blood circulation goes wrong. What can an operation do? Cutting the body will not help you. If the bad tendency is not gone,again we have to cut. It is not that the body can be cured by outside treatment. Behaviour according to Bhagavad Gita gives a healthy body. Anti Bhagavad Gita behaviour affects our health.