Serotonin has a calming effect on the brain, so whatever side of the bed you wake up on, fueling up with complex-carbohydrate-rich oatmeal will send you into the workday on a cloud. Want to add more good-mood food to your diet? Walnuts’ alpha-linolenic acid guards against mood swings, vitamin C in berries and citrus keeps the stress hormone cortisol in check and the folate in avocados and asparagus can help bust the blues.

READ MORE: 10 Stress-Relieving Foods