People who have network of close connections live longer than those who do not.
After heart attack, those with no close contacts were twice as likely to die.
Relationships can also cause stress.
Giving support to others can be a valuable source of comfort.
When friends aren’t helpful Many are stressed by the responsibility of caring for others. In close relationships, the support person may also be the source of stress. Married couples who argue in a hostile way have increased elevations of stress hormones and weakened immune systems. Friends may be unsupportive or block your progress toward a goal. chapter 13