Will Harlow

And the four pillars of independence, as I call them, are mobility, so how well you can move your joints, strength, so how strong you are, but also how much muscle mass you have on your body.

I'm sure we can talk about muscle later, but it's one of the most important things for your health.

I would agree with that, yeah.

Balance, so how well you can stay on your feet is the third pillar.

And then the fourth pillar is skeletal health.

So I define that as the health of your joints, so what's going on inside the joints, and the health of your bones as well.

So avoiding things like osteoporosis and osteopenia, because those lead to a big loss in independence for many of the people that I've treated, even if the other pillars are intact.

So I see these four pillars almost like the four legs of a table.

So you need all four to have a sturdy table.

If you knock one away, the table's wobbly at best.

If you lose two, the table's on the floor.

So that's how I see it.

So much of it.

And the thing you're referring to, Gary, there is something I call exercise snacks.

Now exercise snacks, I think it's just worth bringing this to everyone.

It's short bursts of movement or exercise, typically 30 to 60 seconds that you do in otherwise dead time throughout the day.

So the classic time to do it, as you say, is standing on one leg whilst brushing your teeth to work on your balance.

You don't need to work on your balance in an exercise snack.

You could work on your strength.

You could work on your mobility.