SSJKarma shut the fcuk up, and get some god damn knowledge of the Marvel world. Magneto, can and will be able to hault the blood flow to a persons brain, he can control the tiniest atom of iron, he himself is a magneto. And yes, as a matter of fact, I have saw him do it before.
WHY?
Got a copy of Magneto Rex #1 handy?
*Edit*
FYI, all of Wolverine's bones were laces with adimantium, which is nearly the strongest metal alloy to exist. But he has had his skeleton removes.