Dr. Andy Galpin

But then there's a new awesome term that we call strength span.

And so what this effectively says is your wellness span is going to be dictated in large part by your strength span.

Because as soon as you start losing strength at age, then nothing else will function.

Really easy example here.

Most people are familiar by now with the importance of things like VO2 max, cardiovascular fitness as you age.

This is the entire crux of the wellness span versus lifespan argument.

That said, if we were to go outside right now and walk from the bottom of the stairs all the way up here, right?

And I cut your leg strength down by 80%.

You wouldn't make it up here.

Your cardiovascular system would be going nuts.

You would be at max heart rate and it would have nothing to do with your VO2 max.

It's the fact that your legs are super weak.

Your legs and your hands are the things that make you move throughout the world.

And so I call them, they are your interface with the world.

So we know that if you have a strong interface, you're more likely to do any activity that you choose to see fit.

More importantly probably is you won't opt out.

of them.

Easy examples like, oh, I'm not going to take that trip.

I'm not going to go to the grandkids.

I'm not going to do whatever else as I'm aging.