Autism is from Neandertal genes!!!

[SheilaT]

5. My son with Asperger's also

has alopecia areata, an auto-immune disorder that causes hair loss. He has the most extreme version, universalis, which means he has no hair at all anywhere.

Then again, his brother who is as amazingly social as a human can be also has alopecia areata universalis. So genetics of some kind is definitely at work. I personally think a lot of all of this is simply the roll of the dice.