Your relationships with those around you are what constitutes you and forms your psyche, and it is what prolongs or bombing your life. It is what affects your mental and physical health, and what determines the extent of your ability to resist diseases, sorrows and aging. Relations between humans are among the most complicated things in this world. These relationships may be one of the important reasons for happiness, joy and demand for life .. It may also be one of the sources of misery and pain. These are not opinions or personal experiences, but rather as a result of a great study conducted at the American University of Stanford and lasted for seventy -five years, and included generations of researchers aimed at knowing what affects people's lives.