The body is a delicate balance of chemicals and hormones. It’s more than just the beating of your heart and the breathing of your lungs. The human body has an internal clock, called the circadian rhythm, which regulates all of our daily operations. When we change our schedules—especially in drastic ways like daylight saving time—we can disrupt this natural rhythm. This can have adverse effects on our health, including an increased risk of disease or even death.