 decline or changes in our muscle strength, endurance as we age, we have to add in some exercise to help keep doing as well as we are and to keep doing the physical activity that we want to do. So specific exercise is really important to add into your routine. So I've walked a lot for like 40 years, but that's probably not enough to maintain my stability and prevent myself from falling down. Is that true? Correct. Yes. Walking is great. It's one of the