Most people think exercise works because it burns calories.That’s true — but it’s only the surface. Deep inside your cells, every workout flips a series of molecular switches that decide how your body uses, stores, and repairs energy.Dr. Robert Lustig, in his
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When it comes to health and performance, most people focus on calories or macros.But inside your body, eight microscopic systems determine whether you thrive or decline. Dr. Robert Lustig, in his book Metabolical, calls them the Eight Subcellular Pathologies — the real
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The Real Reason Exercise Works Most people think exercise works because it burns calories or builds muscle.But Harvard evolutionary biologist Daniel Lieberman, author of Exercised: The Science of Physical Activity, Rest, and Health, explains something deeper. The real benefit of training isn’t
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🧬What Science Says About Ancient Movement Most people believe our ancestors were constantly moving and burned thousands of calories each day. However, evolutionary biologist Daniel Lieberman, author of Exercised: The Science of Physical Activity, Rest, and Health, found a different story. Using
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What Happens Inside Your Body When You Exercise When you exercise, your body does far more than burn calories or build muscle.According to Harvard scientist Daniel Lieberman, author of Exercised: The Science of Physical Activity, Rest, and Health, physical activity triggers a
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If you’ve ever asked yourself “What’s the best way to burn fat — cardio or weights?” you’re not alone. Many people still think they must pick one: long runs or heavy lifting. But here’s the truth: you don’t need to choose. The
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