3.Dark Chocolate
Chocolate raises brain chemicals, such as phenylethylamine and endorphins, that produce a natural euphoria.
In addition, dark chocolate is rich in antioxidants, phytonutrients associated with heart health and cancer-fighting properties. Healthy people are happy people.. The darker the chocolate you eat, the better. A small square of dark chocolate can cause the brain to release endorphins and boost serotonin levels.