Water is essential, because water accounts for 50% of the human body, and it can also improve metabolism and accelerate energy consumption.

Occasionally drink tea, it is best to choose black tea, green tea, Pu 'er tea, Tieguanyin or scented tea, because tea contains a substance beneficial to human body, and drinking tea can excrete toxins from the body.

Eat more vegetables. The vitamins contained in vegetables are beneficial to the human body, especially to the young and the elderly. Eating more vegetables is good for health.

If you eat a proper amount of protein food, don't choose high-fat meat such as pork for health preservation. It is best to choose eggs, fish and other foods.

Moderate intake of nuts, especially the elderly, eat more high-protein nuts such as walnuts, because the fat contained in nuts is beneficial to the human body.

Proper exercise, health also needs exercise, as long as there is moderate exercise is also beneficial to health.