Scientists have known for a long time that when animals are given about one-third fewer calories than normal, their life expectancy increases by about one-third. The same is true in human, Eating less is healthier. Eat fresh washed leafy green and colorful vegetables and fruits. Drink 8 to 12 glasses of fresh clean water. If drink tea, drink it without sugar and milk. Avoid sugar and sugar productions, Refine carbohydrates, rice and potato products. Take vitamin C, B-complex vitamins. Walk half and an hour every day. Eat deep water fish. Eat dinner before 3 hours to go to bed. All these efforts may help you to increase your life expectancy.