system
Given the following post, respond as if you're commenting on Reddit:
human
CMV: The elderly need to hit the gym.

I feel like most seniors are super sedentary and weak, and that fact exacerbates their existing medical problems. Having weak muscles and little exercise, will make daily activity harder, reduce circulation, and weaken their immune system. Moreover, many retirees basically let themselves go health wise, having poor nutrition compounded with years of poor lifestyle choices.

The solution? Get big! Obviously there are things they can't do. Not everyone can get into running or strength training, but there's always room for improvement. The existing "senior fitness" classes are more a pastime than exercise. If a lot of elderly people set up goals and made consistent progress, it would be good for their physical, mental and social health.

This is also probably a super dumb perspective, so please CMV.
gpt
It's not that the perspective is super dumb, it's just that the benefit they get would only go so far. 

You have to remember that they also cant recover the way we can and that injuries are a lot more possible and severe when they occur. 

Seniors definitely should be doing mild exercise, eating well and getting air. The bottom line is though, that doesnt reverse the aging process or make your health problems go away at that age. 

Plus we have to define exactly who we mean by seniors. A 65 year old can and should do more than a 90 year old. It's a gradient, not a line. If that makes sense.