How does age typically affect muscle mass and strength?

As individuals age, it is widely observed that muscle mass and strength tend to decrease, a phenomenon known as sarcopenia. This gradual loss of muscle tissue typically begins in early adulthood and accelerates with advancing age. Factors contributing to this decline include hormonal changes, a decrease in physical activity, and alterations in muscle protein synthesis.

As muscle fibers are lost or atrophied, the overall strength and functionality of the muscles diminish, leading to increases in frailty and a higher risk of falls and injuries. Resistance training and regular physical activity can mitigate some of these effects, but the general trend is a decrease in muscle mass and strength as part of the aging process.

This understanding of the aging process underscores the importance of maintaining an active lifestyle and engaging in strength training to combat muscle loss and preserve functional strength as individuals grow older.