One of my best friends is a chiropractor. He has adjusted me enough that I say "limp in leap out".
I've called him before with my back hurting so bad it hurt to breath. "meet me at the office" 10 mins after being there I'm as good as I can be.

I do believe as with everything there are good and bad.

"Aim right, squeeze light"
" Might as well hit what you're aiming at, it kicks the same whether you miss or not"
NRA Life, GOA