The World Health Organization says 1 in 6 adults is affected by infertility worldwide. Fertility expert Dr. Afrouz Demeri, who helped formulate a prenatal vitamin supplement for both women and men called WeNatal, joined CBS News to talk about infertility common causes. CBS News Streaming Network is the premier 24/7 anchored streaming news service from CBS News and Stations, available free to everyone with access to the Internet. The CBS News Streaming Network is your destination for breaking news, live events and original reporting locally, nationally and around the globe. Launched in November 2014 as CBSN, the CBS News Streaming Network is available live in 91 countries and on 30 digital platforms and apps, as well as on CBSNews.com and Paramount+.