The gym and the treadmill is a good idea. But the problem is we spend so much effort in marketing messaging, deluding people into thinking if you get on your treadmill or you go to the gym, that's what you need. People who join a gym, the vast majority of them have quit within nine months and almost all of them have quit within two years. So if it's a longevity strategy, does not work.

Select your friendships carefully. Gather people around you who will reinforce your lifestyle.

The longest-lived people eat a plant-based diet. They eat meat but only as a condiment or a celebration. Nothing they eat has a plastic wrapper.

Walking is the only way proven to stave off cognitive decline - it works.

Inconvenience yourself: ditch the remote, the garage door opener, the leaf-blower; buy a bike, broom, rake, and snow shovel.

True happiness involves the pursuit of worth goals; without dreams, without risks, only a trivial semblance of living can be achieved.

So learning to play a new instrument, learning a new language - those sorts of things will pay dividends for years or decades to come.