Today's 10-minute walk is helping you keep the fitness promise you made yourself.

And we'll add another link to your growing fitness chain.

It is one of the colder mornings here in Myrtle Beach, South Carolina.

I am well-layered. I've got my thickest ski cap on. I've actually got a thicker pair of gloves,

insulated socks. Gratefully, even though the temperature is below normal for this time of year,

the wind is not blowing, so I'm not dealing with a wind chill, which is good.

I know there are some, perhaps even you, whose weather right now is brutal,

and it is really hard to get outside and keep your fitness promise.

But you've bought the right kind of gear and you layer up and off you go.

And I respect that, admire that, but don't want to emulate that, which is why we moved 500 miles south from Maryland to South Carolina.

Have you ever thought about this pursuit of fitness as a challenge? In fact, let me take fitness off the table and just talk about challenges.

Do you like to challenge yourself? Do you like from time to time to set a challenge to look at something that's really, really hard that maybe no one else is doing and you challenge yourself to go for it,

to do it.

Not everybody's wired that way.

I don't think I'm wired that way.

I mean, there have been challenges that I've kind of laid down for myself in my life that I can look back on now and at the time it was really hard,

but now there's a sense of accomplishment, sense of having done something that was a challenge

that was hard. It's a reminder that I can do hard things.

Don't do it that often, but I have from time to time.

I have yet though to do something as hard as Geraldine McFall, what she did last year.

Geraldine lives in Glasgow, Scotland.

Actually, I don't know if she lives in Glasgow. I assume she lives, if not in

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