Members of groups live longer

There is research that suggests that a reduced intake of calories can promote longevity. But with almost one third of Westerners being overweight and, at the same time, the average lifespan increasing for men to 72 and women to 79 the theory seems a bit thin.

On the other hand, research by Harvard university proves that animals living in groups live longer. The research also shows that people who are members of associations, clubs, churches or groups like close-knit families live longer than those who do not.