I'm 55, and work in a warehouse in blazing heat and freezing cold managing a bunch of guys half my age. I live for the times that one of them will say something is impossible so I can do it and show them up . These 100 degree days are starting to get to me though, and my crew would probably laugh themselves silly to see how hard it is to get out of bed in the mornings. Now my Doc says to knock it off and act like a man 2/3s my age or better, I'm doing too much damage to my knee and hip joints lifting stupidly heavy stuff. I don't remember getting older, when did this happen? Don't ever let them see you wince...

But you can overdo things. With moderate, regular exercise and a reasonable diet, it is amazing how well older bodies can manage.

That was almost 20 years ago! Now my peaks are in different places, depending on my orientation to vertical at the moment. I stay active but I don't get paid to destroy my body anymore.

--
Sincerely,

Hobie

I did some research on CrossFit, and I found that it has a high injury rate with the workouts. For years I did hard heavy workouts with running, martial arts, heavy weight lifting, and various eclectic workouts to enhance my martial arts training ( similar to CrossFit, but before it was around). Now at age 47, I am looking at a hip resurfacing on my right hip in two weeks. I think these heavy hard workouts damage one's body at any age. Look at professional athletes as they age; most are suffering from past injuries. Once I am healed my workouts will be 30-40 minutes of cardio ( fast walking, biking, or elliptical ) and light high rep weight training. Good luck and feel better.