Melatonin is highlighted as the body's primary antioxidant, produced intracellularly in the mitochondria, especially at night. To optimize melatonin production, it's essential to avoid light exposure after sundown and maximize sunlight exposure during the day, as near infrared radiation penetrates deeply through skin and clothing. The shift from incandescent to LED lighting has altered the light spectrum we experience indoors, diminishing the benefits of natural sunlight.