I additionally agree with Jen in the fact that the pineal gland serves the most significant function in the human body. Although this gland is only the size of a small pea, it plays the most crucial role in controlling the circadian rhythms and the sleeping patterns in all human beings. This gland has the ability to detect the specific time of day, which tells the body that it is either time to stay awake and active, or time to relax and prepare for rest. Through the flow of the hormone known as melatonin, this gland is able to normalize the circadian rhythms. In order for the body to properly function during the daytime, the retina of the eye absorbs light, sending it through to the brain, and signaling the pineal gland to shut off any melatonin production. The opposite is done when nighttime approaches, because the amount of light decreases significantly. This causes the pineal gland to increase its production of melatonin, which allows sleeping at night to be