I think guys overtrain and they burn out. And also just knowing what your body needs. Again, I think rest is really important.

Guys get injuries and there's a reason why these injuries happen. A lot of time you're going to get your knee injuries and your ankle injuries, but sometimes if a guy's back is hurting it might be because his core isn't balanced with his back.

I think as you get older and things don't work as much as they used to, you've got to have a tendency to do what's right for your body.

When I came into the league in '85, the regimen for working out was just basic, and as I got older it became more about the core and keeping your body in balance.

When you are younger you tend to overtrain and you don't realize it because you're so high on adrenaline and stuff.

I think that while kids are in college they don't think that fitness and nutrition are really important things. But once they get to the NFL it's a job, and just like any other job you've got to be at your best to a certain point, especially with a job like this. You've got to be fit and you've got to eat the right things.

I think guys overtrain and they burn out. And also just knowing what your body needs. Again, I think rest is really important.