Importance of Health. Health is a state of complete physical, mental and social well being. For a healthy life cycle, a person needs to have a balancedt and has to regularly exercise. One must also live in a proper shelter, take enough sleep and have good hygiene habits..Better health is central to human happiness and well being. It also makes an important contribution to economic progress, as healthy populations live longer, are .Your food choices each day affect your health how you feel today, tomorrow, and in the future. Good nutrition is an important part of leading a healthy lifestyle..Health is a state of physical, mental and social well being, not just the Mental health is as important as physical health to a full, active lifestyle..Health Definition and Importance of Health! Definition The term health is a positive and dynamic concept. In common parlance, health implies absence of .