Kindness has been shown to increase self-esteem, empathy and compassion, and improve mood. It can decrease blood pressure and cortisol, a stress hormone, which directly impacts stress levels. People who give of themselves in a balanced way also tend to be healthier and live longer. Kindness can increase your sense of connectivity with others, which can directly impact loneliness, improve low mood and enhance relationships in general. It also can be contagious. Looking for ways to show kindness can give you a focus activity, especially if you tend to be anxious or stressed in some social situations.