In order to avoid a short life and a quick death a person needs to keep fit in all possible aspects such as physical fitness, mental fitness and spiritual fitness. In order to improve the physical fitness, the person needs regular exercise and a balanced diet, and this will not only help to maintain fitness but also has a psychological and mental effect. To relax the mind and soul, the person can either read or write or watch the television, etc; furthermore, a holiday from regular work can also be effective. Then, regular practice of prayers and a human’s touch or presence can keep you fit spiritually, for example, cracking a joke among friends can lead to laughter which suggested by the doctors is good for health. Thus, to be safe from regular old age checkups and to live a longer life, the person needs to stay fit.