I saw the HHS Move Your Way campaign regarding the new strategy on encouraging older people to exercise, namely the Midcourse Report: Implementation Strategies for Older Adults.
There are many ways to get and stay fit. We could all do better, including me. I exercise pretty much daily for about 30 minutes. Following that, I usually sit in mindfulness meditation for 30 minutes.
The report says we should do moderate intensity aerobic activity for at least 150 minutes a week and muscle strengthening activity for at least 2 days a week.
I do a combination of stationary bicycle exercise, weight exercises with dumbbells, planks, body weight squats. I also do one leg stand, one minute each leg.
And juggling is great aerobic exercise. I struggle a bit with advanced thumb wrestling.
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