Do You Really Have a New Body Every 7 Years?

You may have heard the rumor. Every seven years your body becomes a whole new person. But is there anything to this? Check out this SciShow episode to find out! Hosted by: Hank Green ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters -- we couldn t make SciShow without them! Shout out to Justin Ove, Accalia Elementia, Kathy & Tim Philip, Kevin Bealer, Justin Lentz, Fatima Iqbal, Thomas J., Chris Peters, Tim Curwick, Lucy McGlasson, Andreas Heydeck, Will and Sonja Marple, Mark Terrio-Cameron, Charles George, Christopher Collins, and Patrick D. Ashmore. ---------- Like SciShow? Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids? Check out our awesome products over at DFTBA Records: http://dftba.com/scishow ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: http://www.livescience.com/33179-does-human-body-replace-cells-seven-years.html http://book.bionumbers.org/how-quickly-do-different-cells-in-the-body-replace-themselves/ http://askanaturalist.com/do-we-replace-our-cells-every-7-or-10-years/ http://science.howstuffworks.com/life/cellular-microscopic/does-body-really-replace-seven-years.htm https://www.newscientist.com/article/dn23665-nuclear-bomb-tests-reveal-brain-regeneration-in-humans http://www.wisegeek.org/what-is-the-average-cell-life-span.htm http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2991140/ http://www.tandfonline.com/doi/abs/10.3109/03014460.2013.807878#.VxUP9NQgu8o http://gizmodo.com/how-nuclear-bombs-tell-us-the-age-of-human-cells-1481591437 http://www.ncbi.nlm.nih.gov/books/NBK45504/