
See a soggy piece of string, dangling wet and flaccid from the frayed edge of a shirt sleeve? Or a corroded elastic band, incapable of maintaining any tension or force lest it breaks pitifully?

I have seen such a degraded example of old material.

That's your bicep, that is. Atrophied and weak. That's why you need an electrical screwdriver to put screws into anything. Except you can't hold it either, so you need someone to do it for you.