Melatonin gets marketed like it’s a harmless, “natural” sleep vitamin—so in this video I break down what it actually is: a hormone that acts like your body’s timekeeper. We walk through how melatonin fits into circadian rhythm, why sleep and stress feed into each other, and what the evidence really says about whether melatonin meaningfully improves sleep for most people. The point isn’t to fear-monger—it’s to stop treating hormones like candy just because they’re sold over the counter. Then I get into the safety side: the big headline study that raised eyebrows by linking melatonin use with an increased risk of heart failure, plus the more practical issues that matter day-to-day—dose inconsistencies, weak regulation, and why this is especially sketchy for kids. I also talk about what “safe use” actually looks like if you’re going to use it at all, and I give you better, boring-but-effective sleep strategies that don’t rely on pills. My goal is simple: I want you to be able to think like a surgeon—look at mechanisms, look at data quality, and make decisions based on risk vs. benefit, not vibes.