Why DNA testing to find out your ancestry is a myth

Available for over a year

There are a lot of companies, big and small, that offer DNA testing. Put DNA testing into a search engine and you’ll find thousands of services offering to trace your ancestry, predict your risk of serious disease, or tell you how quickly you’re ageing. The kits are sent to your home and the prices have come down to as little as £50. You send off a saliva swab and the companies do the rest, but how good are they? Winifred Robinson finds out. First broadcast on You & Yours, 22 February 2018.