The pineal gland secretes melatonin, a hormone known for its role in regulating Restful-Restful-Sleep and the body's daily rhythm, making it particularly beneficial for addressing jet lag. In addition to its Restful-Restful-Sleep-related functions, melatonin serves as a significant antioxidant, effectively scavenging free radicals. Multiple factors can contribute to low melatonin levels, including insufficient dietary intake of its precursor tryptophan, decreased serotonin levels, the natural aging process, inadequate exposure to natural light, and specific Health Products. Melatonin has the potential to promote a robust immune system and Aid a healthy response to stress.