Chapter 1
The body's secret communication network
Chapter 2
The protein paradigm shift
Chapter 3
Sarcopenia and the battle against the fade
Ch 3 · Sarcopenia and the battle against the fade
coach Sarcopenia affects up to 27% of older adults globally, accelerating after age 60 to cause frailty and loss of independence.
Quiz
At around what age does the natural decline of muscle mass typically begin for most adults?
Quiz
What is the medical term for the age-related loss of skeletal muscle mass, strength, and function?
coach Mechanical tension from weights forces muscles to adapt and grow to prevent sarcopenia.
Quiz
Which type of exercise is specifically required to stimulate muscle growth and prevent sarcopenia?
Fun Fact
Grip strength health: A simple handgrip strength test is one of the best predictors of overall longevity, cognitive health, and survival rates from major diseases.
Quiz
How much protein per meal do older adults typically need to overcome anabolic resistance and trigger muscle repair?
Glossary
sarcopenia (noun)
The gradual, age-related loss of skeletal muscle mass, strength, and physical function. A 2026 Lancet study reframes this decline as a motor system disease instead of a muscular one.
The gradual, age-related loss of skeletal muscle mass, strength, and physical function. A 2026 Lancet study reframes this decline as a motor system disease instead of a muscular one.
Quiz
Approximately what percentage of post-meal blood glucose is cleared from the bloodstream by skeletal muscles?