Muscle Mass
Why It Matters
Muscle mass isn’t just about aesthetics—it’s one of the strongest predictors of longevity. Studies show that higher muscle mass is directly linked to a longer lifespan and lower disease risk (JAMA, 2018). Sarcopenia (muscle loss with age) is one of the leading causes of frailty and early death.
Maintaining and building muscle mass as you age is essential not only for mobility and strength, but also for metabolic health, hormonal balance, and resilience against chronic illness. Muscle acts as a metabolic reservoir—helping regulate blood sugar, reducing inflammation, and supporting immune function. It's also critical during periods of illness or stress, when the body relies on muscle protein reserves to recover. Resistance training, adequate protein intake, and regular movement are powerful tools not just for staying fit, but for actively extending your healthspan—the number of years you remain strong, independent, and disease-free.
How To Measure It
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DEXA Scan
A DEXA scan (Dual-Energy X-ray Absorptiometry) is a medical imaging test that provides a detailed analysis of body composition, including fat mass, bone density, and lean muscle mass. It’s considered the gold standard for tracking regional and total muscle mass, allowing you to see exactly how much lean tissue you have in specific areas like your arms, legs, and trunk.
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Grip Strength Tester
This Hand Grip Strength Tester is a convenient tool for measuring grip strength, a proven proxy for overall muscle mass and functional strength. Since grip strength correlates strongly with total body muscle and is a key predictor of longevity, using this device regularly can help you track changes in muscular health, detect early signs of sarcopenia, and assess the effectiveness of your strength training or wellness routine.
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Bioelectrical Impedance (BIA) via Smart Scales
Bioelectrical Impedance Analysis (BIA) is the core technology used in most smart scales on the market today. When you step on the scale barefoot, it sends a very low electrical current through your body. Since muscle, fat, and water conduct electricity differently, the device uses the resistance (impedance) to estimate your body composition, including muscle mass.
