I learnt there is a town called Igbo Ora where people eat yam to get twins. How true is this?
Yes, it true.Igbo Ora is the Land Of TwinsIt's a curious, but little-known fact that the rate of twin births in West Africa is about four times higher than in the rest of the world. The centre of this twin zone is Igbo-Ora, a sleepy southwest town in Nigeria. More twins are born here than anywhere else on earth, but nobody is quite sure why this town should be more twin prone than any other. Outlook reports from the 'twin town' with a difference.See more here- http://www.bbc.co.uk/worldservice/people/highlights/010607_twins.shtml