Many believe that chronic melatonin use could disrupt natural production, but it may actually function as a protective hormone rather than a sleep regulator. Emphasizing the complexity of human biology, the conversation highlights the limits of our understanding and the potential pitfalls of over-supplementation. As insights on human knowledge unfold, the discussion encourages a more cautious approach to supplementation, reminding us that what we think we know may often be only part of a much larger picture.