I've long thought it's a wonderful coincidence that there's not enough magnetic material in the average human to make MRI dangerous to the point of uselessness.

I've long thought it's a wonderful coincidence that there's not enough magnetic material in the average human to make MRI dangerous to the point of uselessness. Good to know what to look out for if I ever get a scan. I wonder what the mechanism that caused that was. Induced current, maybe.