(CNN) As a professional athlete playing rugby at the highest level, Bryan Habana has to be keenly aware of his body and how it reacts. "One of the most surprising things was that I found out -- after 32 years -- that I was lactose intolerant," he tells CNN's World Rugby show. Habana teamed up with the company last year, and aims to build a DNA database of 1,000 professional rugby players by 2019. Corpe says DNAFit has a rugby training plan specific to players' positions on the field -- front-five forwards, back-row forwards, inside backs and outside backs. CNN's World Rugby show co-host Christina Macfarlane had her DNA tested, and compared her results with Habana's.

Source: CNN May 31, 2017 10:30 UTC