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
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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/