Cardio keeps the heart healthy, and that’s enough. Cardio alone doesn’t preserve muscle mass; it needs resistance too.
Climbing stairs is already great, but carrying something, groceries, a backpack, even a water bottle, turns it into a loaded carry, one of the most effective ways to engage core, legs, and shoulders. According to a journal, loaded carries promote functional strength and help retain lean muscle tissue.
This daily act, usually overlooked, can be a secret strength builder when done consistently.
