We explained how and what one should eat. There must be a rest even for eating. Those who eat indiscriminately must take shelter in this rest. Others also need this rest. This is called Fasting.
Health in tradition
Our ancestors had lot of forethought. The daily life is interspersed with the Daily prayer, Religious, Ritual and periodical worship of the Divine Forces. They have not forgotten the part of cleanliness, orthodoxy and health. Instead of making these fasts, etc. as independent regulations of worldy life, they have made these interdependent in worship of the Divine Being. They have also ruled that one acquired spiritual merit (Punya) by observing these practices and that degradation (Papam) would result by giving them up. When we examine the social rules and regulations of daily conduct, we find that they contribute to the purity of the body, mind and the spirit and they tend to preserve health the individual. There are many who do not understand this truth. Attracted by the formal and superficial civilisation of the west these mock at their own Shastras and injunctions.