text: if you put a laptop on your lap does it affect your sperm cound or fertility?   i guess...  it is said that heat in a way sorta lowers the sperm count and cold increases it. this knowledge has been around for quite a while, as some tribe members in africa actually use dip their testicles in hot water a few days before sexual intercourse as a form of birth control.  hence, if you put a laptop on your lap - the heat from the battery might nullify the sperm count for a few days, but it won't really affect your fertility. that's my thought on the subject. i'm just passing on what i read in a book... =p