No—losing muscle explains only a modest share of the strength decline seen in older adults. The Medical Xpress article challenges a common view of Muscle Weakness in aging. That view treats declining strength as a simple result of shrinking muscles. The evidence described in the article does not support that full story. Its focus is older adults, rather than one new treatment study. The article says measures of strength and movement now help define age-related muscle decline. These include grip strength, Walking Speed, and the ability to rise from a chair. They predict falls, disability, and death better than muscle size alone. Yet explanations of weakness still tend to focus on muscle loss. The supplied excerpt gives no study size or exact percentage for this gap. It also does not establish what causes the remaining loss of strength. The main takeaway is narrower: muscle size and muscle function are not the same thing. A measure of one cannot tell the whole story about the other. For BioSocial members, this offers a useful way to read personal trends. A Muscle Mass (Lean Mass) record can sit beside notes about strength and everyday movement. Those records answer different questions. Comparing them over time may reveal whether changes seem to move together or apart. Community notes can add context, too. Sharing how a measurement was taken makes comparisons more useful. So does describing which daily tasks feel easier or harder. These observations cannot prove a cause, but they can make progress discussions more grounded. What changes have you noticed in your strength or daily movement compared with your muscle measurements?