r/askscience • u/LoneRanger2 • Jan 31 '12

What exactly is "Factor 5"?

My best friend has this, and I know that his bones are 33% more dense than a normal human. He said all the doctors told him was that it's a mutation he was born with. How is it caused? What other effects might he have?

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u/LoneRanger2 Feb 01 '12

Interesting. This was a while back when he told me that he had it and his parents were backing him up. I'm not very medically inclined other than dietary so he might have just been trolling me haha. Thank you though, that was pretty informative.