Going down the rabbit hole, but:
I make a shake every day, and yogurt is part of it. I belive that the healthier your gut is, the easier it is to absorb nutrients, and the easier to flush out toxins.
Leg strength helps decrease and mitigate falls, which can be an quality of life threat. And the same with arm strength. The stronger you are, the more involved with life you'll be.
After half-assing it for years, I am finally getting some consisdtent time at the gym, and I can feel the difference. I have no idea how someone my age is 'supposed' to feel, but I don't feel any different than 40 years ago. And my spouse laughs at me, but I see no reason why I cannot be much better.