Your hypothalamus is the part of your brain that regulates critical bodily functions like your appetite. A National Institutes of Health study found that when you express kindness or feel gratitude, your hypothalamus floods your brain with dopamine. This gives you a natural high, motivating you to do good and express gratitude even more.
UCLA’s Mindful Awareness Research Center found that regularly expressing gratitude changes the molecular structure of your brain, keeps your gray matter functioning, and makes you healthier and happier.