Dynamic Aging is the title of a book by Katy Bowman, a movement expert. It is filled with good exercises to keep us limber and moving well as we age, including working on balance and joint mobility, and practicing walking on uneven surfaces. These are easy to do at home with little or no equipment. I was already doing the equivalent of some of these, for example in my stretching routine, but I definitely picked up some good tips, like using a tennis ball to keep feet flexible.
The other thing I liked about the book is that Katy collaborated with some of her students, three women in their 70s, to provide commentary on how this program has helped them, which I found inspirational. I definitely recommend this book.
Katy also writes a blog with interesting essays on movement at https://www.nutritiousmovement.com/blog/. A recent post describes why calf raises are good for your heart (by helping with peripheral circulation via “venous return”) as shown in the figure:
BionicOldGuy 
Thanks for sharing. Very interesting. I sound like a bowl of Rice Krispies when I get out of bed in the mornings.
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I have to spin easy on my stationary bike for 10 minutes in the morning to get my joints lubed 🙂
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I do calf raises often as I had a ankle to thigh dvt from my first hip surgery (a Triple Pelvic Osteotomy and Femoral osteotomy, lengthened 2 inches) so blood pools in that leg if I don’t try and work the blood around, sadly the DVT destroyed my valves.
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ouch! DVTs are scary! My friend had one on a long flight and it caused a pulmonary embolism. He ended up OK, but gave us a scare. I’m glad the calf raises work for you
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They are super scary. Glad your friend is ok, PEs are terrifying
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