Researchers from the US proved that happy people have good health. Based on the foregoing, we can conclude that the relationship between happiness and physical health. According to scientists, the condition in which the happy people are, can positively affect the immune and cardiovascular systems. In the event that the conditional level of happiness is very high, then a person can resist depression, stress, and other external pathogenic factors, according to Mood In addition, the scientifically proven fact that happiness can do wonders. So, people who are overwhelmed by this feeling, are quickly recovering from serious illnesses and injuries. However, many experts believe that at present people experience a "shortage of happiness", which is increasing every day.