The World Health Organization's constitution entered into force in 1948 and defines health as the full enjoyment of physical, mental and social well-being. The authors of this document recognized the tendency of people to view health in terms of the absence of disease. This view is outdated, and the organization's Constitution requires that nations recognize and protect health as a human right. The definition of good general health is therefore a matter of choice, and must be flexible in response to changing conditions. The definition of 'health' can be understood from many different angles. Understanding how people define 'health' in different ways can provide us with useful information about health behavior. The goal of health research and healthcare is to come up with a general, universal definition of health. However, the process of defining a health concept is not straightforward. Listed below are some of the most common definitions of health, and how each one is used in practice. In the first definition of health, the emphasis is on prevention. Preventative action is essential in order to maintain a healthy lifestyle. It is important to monitor a person's diet and physical activity. Smart clothing can help people track their body measurements, and it can also help people improve their health by making their clothing more responsive to their needs. The wearable technology market is booming, and new developments are filling in the gaps. For example, a pair of yoga pants equipped with sensors can help you correct a posture. The same principle applies to socks.