Sarcopenia May Be a Bad Connection, Not Just Small Muscles

Your muscles may not only be shrinking with age. They may be missing the message. Researchers found that the tiny connection between nerve and muscle gets unreliable in weaker older adults, tied to the loss of a spark-starting protein. In animals, easing a different electrical brake helped strength come back. We talk through what that means for independence, falls, and why a future muscle drug might look nothing like a typical longevity pill, plus what still belongs in the Monday plan while trials catch up. This episode includes AI-generated content.