If a man wants to remain hale and hearty, he needs to maintain the following 9 things: 1) Food 2) Water 3) Rest 4) Sound Sleep 5) Light 6) Air 7) Cloths 8) Bathing 9) Restraint Which foods should we take? That can be easily taken and digested but nutritious. Taking of foods increases from childhood to 40 years. Again, it decreases from 40 to 60 years in the same manner it increases from childhood to 40 years. The foods we take are of six kinds – 1) Protein 2) Fat 3) Carbohydrate 4) Salt 5) Water 6) Vitamin. 1) Food containing protein: Fish, meat, egg, milk, pulse. They fulfill our demand of nutrition and stops decay. 2) Food containing fat: Clarified butter, butter, oil, fat and nut. They form fat in our body, grows useful warmth and strength of hard work. 3) Food containing carbohydrate: Rice, bread, potato, flour, sugar, date increase warmth of our body, working capability, and f...