This is the best overall health advice I can possibly give you.
Buy yourself a good axe, a hatchet, a slingblade, a fine set of shears, a machete, a long-knife, a shovel, a pushmower, and any other useful tool you will need and then go outside every day you possibly can and work your land for at least an hour or so.
Do not buy or use electronic or powered tools and equipment for these are for your convenience and work avoidance, they are not for your health, your strengthening, your toughening, or your personal good.
Instead buy high quality and durable hand tools and do all your work by hand and by main force. This will make you strong, and tough, and healthy. Work in the fresh air and sunshine, sweat freely, and do your labor vigorously and your labor will reward you many times over in your life and in the length your lifespan.
If you live in a city and have no land of your own to work then get out of such a deathtrap as often as possible and go out into nature and work at whatever you can for whomever you can whenever you can.
You will live much longer, you will be much stronger, you will become much tougher, you will be much happier, and you will be far healthier than ever before.
The sedentary and inactive man dies a little more every day, but the Active and Vital Man is reborn each time he works the world. The Earth itself is his lifeblood, his labor is his expansive breath, and his unrelenting activity is the drumbeat of his powerful heart.
Never fear hard physical labor, labor hard at the entirely laughable idea that you can ever truly live free of it.