It's truer than most realize.

Decided to start lifting at age 47 because I was depressed with work, expecting to be laid off, and needed something positive in my life. A few months in I realize my back no longer hurts while sleeping. I'm not waking up in the morning aching. Here I thought I was hurting just because I was getting old when the reality was I was hurting because I was weak. I was dealing with back pain for several years unnecessarily.

I can do nothing and suffer, or I can suffer a little under the bar and feel great. Either way I suffer but the latter suffering is so much better.