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.

The beauty of moving naturally, i.e. walking and gardening, is they're low impact. You're less likely to fall down and break a hip. Setting up your life so you're nudged into general physical activity every day is a strategy for your entire life from age 10 to 100.

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

Singapore is the happiest place in Asia

Having a purpose and knowing exactly what your values are will add additional years to your life.

You have to know why you get up every morning.

I live on the water. I live in a neighborhood that's consummately connected to my neighbors. I bump into them every day. I can bike to work.