Happy days

Happiness helps to lower blood pressure and stress, improve the immune system, and motivate people to be more active. Research suggests that, on average, genetics determines 50% of a person’s general happiness level. However, a person’s happiness is at least somewhat under their control, which suggests that even people who are not naturally happy have the power to increase their happiness. They can do this by practicing regular acts of happiness—activities linked with better mood and increasing optimism.