My mother had a car accident when she was pregnant with me. She was also taking Lithium. I really wonder what effects those things may have had on me. I was a month premature, not bad, but I didn't have fingernails or hair, yuck. But now I have the strongest fingernails anyone would want and very good hair, so much so that I grow it out to donate it to people with cancer. It's currently getting to the point where I can't wait to get it cut off, but I have a few more inches to go.