Your mood is often gloomy, you have headaches or back pain, feel lethargic, anxious, and unfocused, and have a craving for sweets or other things? Then you are likely suffering from a lack of serotonin - a neurotransmitter responsible for feelings of happiness. Good mood, balance, and pain relief depend on the amount of happiness messengers available in the body. What is happiness, and can it be influenced naturally? Based on the latest research findings from neurobiology, Dr. Günter Harnisch has developed a happiness program based on four pillars that successfully engages physical and mental well-being through all the senses: through food as well as skin stimulation, through movement as well as through one's own thinking. He draws on ancient, newly rediscovered experiential knowledge.