Restoring sick people to good health by some medical (physical, chemical, emotional/psychic) means.
Health services require that a community develop a fundamental consensus on what constitutes being appropriately healthy. Consensus is also required about appropriate measures for maintaining health, especially as regards those measures which intrude upon strong social values.
Health services isolated from the larger social context extend life expectancy and save lives of those who would previously have died, contributing to the overcrowding of the planet. Furthermore, health programmes focus community resources on the maintenance of physical well-being, leaving out the quality and utility of lives.