Peter Attia· MD
let's say you're you have a frozen shoulder on this side it was going to look completely normal to look at you have pain you have stiffness you can't do all the things you want to do and I look here and I see that this one's 70 and I look here and it goes only goes to 30 and it starts to hurt when I do that that's that adhesive capsulitis in there that's blocking motion