How Feelings of Joy Affect <br />Your Body Physically 1. Your brain. When you're happy, your brain releases dopamine and serotonin into your <br />central nervous system. This tells your <br />whole body that you feel good. 2. Your circulatory system. Dr. Diana Samuel, via Healthline Joy isn't the only emotion to affect this system, however. Fear, sadness and <br />other emotions take their turns as well. 3. Your autonomic <br />nervous system. This is your bodily system that works without your conscious effort. <br />Things like breathing and <br />digestion are handled with this system. It can be affected by joy, <br />for example, with rapid breathing, salivation, sweating, body <br />temperature and metabolism.
