200. More about Digestion
32:4 When one is young, his digestive system is robust and he needs to eat more often than one who is middle aged. An older person, who is weaker, must eat more-easily digestible food, in smaller quantities, in order to maintain his strength.
32:5 In the summer, digestive organs are more sluggish from the heat, so one should eat less in the summer than in the winter. Doctors of the time advised people to eat in the summer two thirds what they would eat in the winter.