Why Muscle Matters & How to Build Muscle | Perform with Dr. Andy Galpin

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Episode Highlights
Organ System
explains that skeletal muscle is the largest organ in the body, surpassing even the skin. He emphasizes its role in communication within the body, sending and receiving signals from the nervous and endocrine systems. This makes muscle integral to overall health and performance 1. Andy highlights a study showing that low grip strength is linked to 30% of dementia cases, underscoring the importance of muscle quality and quantity for longevity 2.
Skeletal muscle is far smarter than we used to think. It sends signals to other organ systems, impacting everything from your kidneys to your brain.
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He argues that muscle is the most important organ for regulating performance and health across various systems in the body.
Longevity
Andy discusses the critical role of muscle in longevity and disease prevention. He cites a study involving half a million participants, showing that those with low muscle mass have twice the risk of all-cause mortality compared to those with higher muscle mass 2. Strength training is highlighted as a key factor in reducing risks of sarcopenia and dementia 3.
Getting stronger continues to reduce your risk of developing things like sarcopenia or late-onset dementia.
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Andy emphasizes that increasing muscle strength offers continuous benefits for overall health and performance.
Metabolism
Andy highlights the role of muscle in metabolic health, noting that skeletal muscle is responsible for most of the body's metabolism and heat generation. He explains that athletes are significantly more effective at disposing of glucose into their muscles compared to non-athletes 4. Quality of muscle is also crucial, impacting how effectively one moves and performs daily tasks 5.
Most of your metabolism in your body is actually occurring in your skeletal muscle.
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He stresses the importance of muscle quality in addition to quantity for optimal health and performance.
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