Emotions are a form of biochemical bank account; positivity pays in and negativity is a withdrawal. We can give to one another in an emotional ecosystem when society is healthy, cooperative and kind. In a society of competition people start to take more than they give, health of brain and body deteriorates, society becomes more violent and unstable. It all links back to the biochemical bank account and the lead indicator of too many withdrawals and lack of deposits is stress (high cortisol).