Researchers have revealed a potentially life-saving rapid blood type test, and does using GPS to get around make your brain lazy? Hosted by: Hank Green ---------- Support SciShow by becoming a patron on Patreon: www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters—we couldn't make SciShow without them! Shout out to Kevin Bealer, Mark Terrio-Cameron, KatieMarie Magnone, Patrick Merrithew, Charles Southerland, Fatima Iqbal, Benny, Kyle Anderson, Tim Curwick, Scott Satovsky Jr, Philippe von Bergen, Bella Nash, Bryce Daifuku, Chris Peters, Patrick D. Ashmore, Charles George, Bader AlGhamdi ---------- Looking for SciShow elsewhere on the internet? Facebook: www.facebook.com/scishow Twitter: www.twitter.com/scishow Tumblr: scishow.tumblr.com Instagram: instagram.com/thescishow ---------- Sources: GPS nature.com/articles/doi:10.1038/ncomms14652 www.eurekalert.org/emb_releases/2017-03/ucl-so031617.php press.nature.com/?post_type=press_release&p=75269 www.cell.com/current-biology/fulltext/S0960-9822(11)01267-X www.ucl.ac.uk/spierslab/researchareas Blood type stm.sciencemag.org/content/9/381/eaaf9209 www.eurekalert.org/pub_releases/2017-03/aaft-faa031317.php labtestsonline.org/lab/bloodbank/start/3/ medlineplus.gov/ency/article/003345.htm www.statnews.com/2017/03/15/blood-type-test/