Just wanted to remind you'all in the context of this discussion that contrary to what's widely known, seniors need MORE protein per lb. body weight than any other age group!

At least (google for your exact age), .5 gm/protein per lb. body weight. I consume more than that.

Also work out in a gym at least 3-4 times a week and sometimes more. I used to rely on workouts on my home stairstepper, until I realized I was only exercising my lower body. Now I also use the weight machines at the gym, making sure to do the upper body exercises.

Not only am I stronger (my son says I have pecs and delts!), but my posture is better. I never miss the machines working on the back muscles, trapezius, lats and triceps. My spine is completely fused and I have other orthopedic/neurological problems which make me walk with a limp and decrease my balance.

If I weren't exercising my back, when I fall (frequently - but not hard) I'd have a very hard time getting up! In fact, I used to be stuck on the ground/grass after falling until I figured out I was neglecting my upper body.

FWIW I also make sure to do daily crunches - for my back (just hook my feet under the legs of my couch, on mats) I even have a flat stomach , knock wood. Also do aerobic, HIIT several times/week. Treadmill and a more strenuous stairstepper (at the gym). This is absolutely vital for my heart - I have AFIB and slight valve regurgitation.
Heck, I think everybody knows cardiac fitness keeps us alive! Besides I'm quite sedentary otherwise, and it's definitely use it or lose it for my heart health. (I keep track of my heartbeat, even when I'm asleep. )

I've learned how to watch videos on the aerobic machines (much less boring) and my only wish is that they wouldn't play that blaring "music" night and day LOL. I confess I procrastinate going, but always feel MUCH better afterwards!

PS I'm 76, and except for a few lapses have been exercising daily since my 20s (was invited to join a "golden" triathlete team at one time when I was a real gym junky. Was very limber (until the major spinal op) and ran, biked, swam, lifted weights and did gymnastics. (How I miss all of that now!)

I even ran throughout my two pregnancies until I went into labor. When I got to the hospital for the first birth, the nurses sent me to the high risk maternity wing (MUCH against my wishes!) claiming I couldn't possibly be full term. They insisted I must be at most 6 months along. I was just too trim! A 6 hour labor without anesthesia followed. I'm sure my strong muscles helped (loved Lamaze too!).

Planet Fitness is cheap and the staff is encouraging. We all wave each other on, even throughout COVID (the ceilings are high, and it's as big as an auditorium - lots of ventilation. Since I go late, it's almost deserted!