Grow a backbone. That’s what most people say if you show the slightest weakness. Is your backbone that strong? I heard about a guy once that lifted weights so much that he crushed his back. The only thing the docs could do was remove the shattered bone pieces and leave his muscle mass (he was a body builder) to keep everything in place IF he stopped body building. A backbone is a fragile thing really. I popped one disk in my neck and lost my left side. Had surgery and got it back. Did too many push ups or something and lost it again. The fake disc that I have will no longer work in 20 years or so. See it will be in perfect condition and the rest of my natural backbone won’t. Take care of that backbone. It’s the only one you’ve got!