Sour cherry fruit contains ingredients that are thought to reduce inflammation and serve as antioxidants. The cherries naturally contain high levels of melatonin which is a hormone made by the pineal gland in the brain that controls your sleep and wake cycles. Light affects how much melatonin you produce, during the shorter days of the winter months, you may produce melatonin either earlier or later in the day than usual. This change can lead to symptoms of seasonal affective disorder (SAD), or winter depression. Natural melatonin levels also slowly drop with age, making sure you get melatonin into your system is beneficial to your entire brain as melatonin breaks down in a cascade reaction into neuroprotective and supportive by product molecules.