Happiness is the overall satisfaction with life. Happy individuals have more positive emotional experiences and less negative emotional experiences. The pursuit of happiness is the eternal motivation of mankind. When individuals are healthy, their feelings about happiness are more influenced by other factors. However, when they are in poor health, the physical pain and psychological pressure caused by physical illness often become an important obstacle to the pursuit of happiness. As Locke said, "a sound spirit resides in a healthy body." A large number of studies show that physical health is one of the most important factors affecting happiness, and its influence on happiness is even greater than income. So, how do health problems affect happiness? There may be two paths:
First, the physical pain caused by illness directly affects the individual's happiness; Second, physical diseases make individuals feel psychological pressure and affect happiness. For example, some studies have found that more than 40% of cancer patients are accompanied by moderate anxiety and depression due to anxiety and uncertainty about the disease. Physical pain and psychological stress may not only have a negative impact on happiness, but also interact with each other, thus forming a vicious circle and ultimately affecting individual happiness.