The 5 Biggest Longevity Myths—and What to Do Instead
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What fundamentals are being ignored in the longevity hype?
Longevity has become an industry. Cold plunges, supplements, wearables, peptides, hyperbaric chambers, elaborate morning routines. And listen, I'm fascinated by this stuff. I use many of these tools myself. I have a morning routine. I do cold plunges. I use certain supplements and peptides. I love experimenting with new ways to optimize my health, and I'm always interested in where the science is going. But here's the thing. None of these tools can replace the fundamentals. You can have the perfect supplement stack, track every biomarker, spend thousands of dollars on the latest longevity therapies. But if you're not exercising, you're not building muscle, you're not sleeping well, you're not eating real food.
And you're not taking care of your metabolic health, you're optimizing the margins while ignoring the foundation. And I think that's where the longevity conversation can sometimes get off track. So today we're gonna cut through some of the noise, what actually matters most if you wanna live a longer, healthier life. We're gonna talk about that. Because you don't need to give up the cold plungers or throw away your self limits. You just need to know what deserves your attention first. This episode was brought to you by Function. Get access to over 160 lab tests annually at functionhealth.com/slash mark. All right, let's dive into the myths. The first myth is the thinner you are, the healthier you'll age.
Let's start with the scale. For decades, we've been conditioned to think lower weight equals better health. And excess body fat, particularly visceral fat, is absolutely associated with metabolic disease. But here's the problem. Weight doesn't tell you what you're made of. You can lose 20 pounds and celebrate what you see on the scale, but what did you lose? Fat, muscle, both? Because as you get older, preserving muscle becomes incredibly important. Age-related loss of muscle and strength can affect your mobility, your balance, your ability to perform everyday tasks. And ultimately your independence. The National Institute on Aging notes that exercise can help protect against age-related loss of muscle mass, strength, and function.
So I don't want someone who's 65 years old obsessing over getting as thin as possible. I want to know, are you metabolically healthy? Are you strong? How much muscle do you have? Can you move well? So do this instead. Get stronger. Stop making weight the only metric. Track your strength and your physical function. Can you carry heavy groceries? Can you get up off the floor without using your hands? Try that. Climb several flights of stairs. Can you maintain your balance on one foot, for example? It's important to make resistance training a regular part of your life. Your goal isn't simply to weigh less at seventy, it's to be stronger at seventy. Muscle is the key organ of longevity. All right, the second myth is the right supplements can slow aging.
Now, this may be the most tempting longevity myth because wouldn't it be nice? Take the right combination of pills every morning and buy yourself another decade. NAD boosters, risferitrol, antioxidants, multivitamins, there are absolutely situations where supplements can be useful. If you're deficient in something, treating the deficiency matters. There are nutrients and compounds with interesting evidence for particular health goals. But there's an enormous difference between this supplement affects the biological pathway associated with aging and taking this will make you live longer. We need to stop confusing the two. And here's a great reality check. The NIH researchers analyzed nearly four hundred thousand healthy US adults and they followed them for more than twenty years and they found that regular multivitamin use
wasn't associated with a lower risk of death. That doesn't mean that multivitamins are useless. It means a supplement isn't a longevity strategy by itself. Instead of more supplements, I want you to master the fundamentals first. Before you spend three hundred bucks a month on supplements, ask, am I exercising?
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