Here are some exercises that you can try if you are getting into training over the age of 50. They're pretty good for any age, covering strength, core, and balance.
The problem with approaching fitness only as a means to an end is that there is no end, no limits, and no one to say what is right and wrong for you but you.
It's a scientific fact, it's never too late to commit to movement, and strength, and flexibility, and mobility, and fitness. Your attitude is all that counts.
Alzheimer's researchers have found that some decline in memory may be explained by a combination of overall fitness and stiffness of the central arteries.
Stop selling fitness through the promise of a bikini body, and instead be good to your body, feel strong and empowered, and to be grateful for what our bodies can do.