The knowledge regarding the biological basis of human behavior has grown explosively in recent years. We know that feelings and emotions are based on biochemical substances, and we know that our behavior is largely controlled by neurotransmitters in our brain and limbic system. It is time to translate the update of the modern life sciences into social interventions. "How to Change our Human Nature" gives more insight into human behavior and offers new solutions for behavioral problems, such as depression, stress, aggression, alcohol and drugs abuse and problems in sexual behavior. This book provides not only basic material for you as a person, but may also give support for anyone who has a job in education, welfare or politics. Part 1 discusses how biochemical processes work. Part 2 gives in insight how we can change our human nature. Ruud Loeffen was a lecturer at Zuyd University as part of the Social Studies faculty until 2009.