Hormones are chemical messengers that help regulate a wide range of bodily functions—from sleep and stress to metabolism and energy use. Melatonin, cortisol, insulin, and adrenaline are all hormones, but each one plays a very different role. Some help manage your sleep-wake cycles, while others are released in response to stress, influence blood sugar levels, or prepare the body for sudden bursts of energy. Hormones follow natural rhythms and can be influenced by factors like light exposure, physical activity, diet, and emotional states. Disruptions in hormone balance may affect mood, sleep quality, appetite, and long-term health. Whether produced by the brain, adrenal glands, or pancreas, these hormones work together to keep the body in sync with its environment and internal needs. Learning how they function can empower you to build habits that support hormonal balance and overall wellness.