Food, air.

Nursing: balanced diet, moderate exercise, balanced mentality, adequate sleep, good habits and good environment.

Balanced diet: diversified food, mainly cereals; Eat more fruits, vegetables and potatoes; Eat fish, eggs and milk often, and eat less fat; Less oil and less salt.

Moderate exercise: the balance between dietary energy intake and daily energy consumption (including about 10000 steps per day for all activities).

Mental balance: less, try not to be "greedy, angry and stupid".

Adequate sleep: Adults sleep about 8 hours a day before 1 1.

Good habits: many, such as quitting smoking and limiting alcohol, eating 80% full, washing hands before and after meals and so on.

Excellent environment: the living room and post are clean and tidy, and there are many tours with good environment.