1) Body Care
Moderateness in every things, moderate exercise, food, work, rest, sex and sleep.
Prevent poisoning of body, with cigarette smoke, alcohol, drugs or even with food.

2) Mind Care
Positive thinking about healthy life and consider it a purpose for living.
Avoid anxiety about your organs, heart, Lever; Kidney etc., which can be taken care of by themselves.

3) Hereditary
Heredity is closely related to health; watch and care your parents !