Dr. Andy Galpin

If you're in an endurance sport, that actually might be in your actual prime still.

It gets even further faster.

As we go to 40 years old, that record jumps to 9.93.

And then at 45, it is a whopping 10.7 seconds.

So you're talking about now addition of well over a second by just going to the age of 45.

To this date, I'm not aware of any human ever running a 100-meter dash in under 10 seconds over the age of 40 years old.

So extraordinarily challenging as we go on just to rattle off a few additional numbers.

Every five years or so you add on to age, you're going to look at an additional half a second or so increase in your 40-yard dash time.

For those of you that are curious, the world record for a 100-year-old male is 26.99 seconds.

In fact, the highest number I've seen was just a few years ago, a 105-year-old ran a 34.5-second 100-meter dash.

So I'm not sure where you're at.

You're welcome to go out and time yourself on this.

Please don't tear your hamstring.

Maybe warm up and try it a few times before you go full maximum speed.

But I hope most of you can come in under that 34.5 seconds.

If not, rest assured there's a 105-year-old out there somewhere who will beat you in a 100-meter sprint, and that's embarrassing.

Coming back to the female side, Florence Griffith Joyner, or Flojo as I referred to her earlier,

Still holds the world record at a time of 10.49 seconds.

And to give you a little bit of context of how dominant that was, it is still the record some decades later.

And I believe there's only one other female to ever run below a 10.6.