Sarcopenia: Why Muscle Is Lost—and What You Can Do
Sarcopenia is the age-related loss of muscle mass, strength, and physical performance. It becomes more common with aging, but muscle loss isn’t inevitable, and there are effective ways to slow or sometimes partially reverse it.
Common causes
- Aging: Muscle-building responses become less efficient with age.
- Inactivity: Sitting for long periods or avoiding resistance exercise accelerates muscle loss.
- Inadequate protein: Not getting enough high-quality protein can make maintaining muscle harder.
- Poor nutrition: Insufficient calories or deficiencies in key nutrients can contribute.
- Chronic illnesses: Conditions that cause inflammation or limit activity can accelerate muscle loss.
- Hormonal changes: Age-related changes in hormones can affect muscle maintenance.
- Hospitalization or prolonged bed rest: Even relatively short periods of inactivity can cause substantial weakness.
What helps protect muscle?
🏋️ Do resistance exercise regularly. Strength training using weights, resistance bands, machines, or appropriately challenging body-weight exercises is one of the most effective strategies.
🥚 Get adequate protein. Include protein-rich foods such as eggs, fish, dairy, poultry, beans, lentils, and soy throughout the day. Older adults may need more protein than younger adults, depending on their health and circumstances.
🚶 Stay physically active. Walking and other aerobic activities are valuable for overall health, while resistance training is particularly important for maintaining strength.
🥗 Eat enough overall. Severe calorie restriction can make muscle loss worse.
😴 Prioritize recovery. Adequate sleep and recovery support physical adaptation to exercise.
🩺 Address underlying conditions. Persistent weakness, unexplained weight loss, difficulty climbing stairs, or repeated falls should be evaluated by a healthcare professional.
The key message: You don’t have to accept progressive weakness as simply “getting old.” Strength training + adequate nutrition + regular movement are the foundation for maintaining muscle and independence as you age.
