Every thought and every emotion catalyze and are catalyzed by biochemical, electrochemical changes. One of my mentors, Dr. Jeanne Achterberg taught us that: “No thought, no emotion, is without biochemical, electrochemical activity; and the activity leaves no cell untouched.” When controlling for all potential confounding variables, such as genetics, environmental exposures, and health habits, unhappy people will usually be less healthy than happy people. Happiness is good for your health. Do whatever it takes to improve it—psychotherapy, mindfulness practice, improving relationships, finding meaning and purpose, and personal growth in whatever form appeals to you.