Scroll through the slideshow for some body-related trivia. How many of these facts about the human body did you already know?

Sources:

(n.d.). Retrieved December 13, 2016, from http://www.pbs.org/wgbh/nova/heart/heartfacts.html

Diwakar, M., & Maharshi, M. (2013). An Extraction and Recognition of Tongue-Print Images for Biometrics Authentication System. International Journal of Computer Applications,61(3), 36-42. doi:10.5120/9912-4509

Facts About the Skin You May Not Know. (n.d.). Retrieved December 13, 2016, from http://www.dermacentermd.com/blog/post/facts-about-the-skin-you-may-not-know.html

Foot Facts | Foot.com – The most comprehensive source of foot health and foot care information (foot pain, heel pain). (n.d.). Retrieved December 13, 2016, from http://www.foot.com/site/professional/foot-facts

Human ears grow throughout the entire lifetime according to complicated and sexually dimorphic patterns–conclusions from a cross-sectional analysis. (n.d.). Retrieved December 13, 2016, from https://www.ncbi.nlm.nih.gov/pubmed/18196763

Jabr, F. (2012). Does Thinking Really Hard Burn More Calories? Retrieved December 13, 2016, from https://www.scientificamerican.com/article/thinking-hard-calories/

Society, N. G. (n.d.). Skin, Skin Information, Facts, News, Photos — National Geographic. Retrieved December 13, 2016, from http://science.nationalgeographic.com/science/health-and-human-body/human-body/skin-article/

Stromberg, J. (n.d.). Why Do We Blink So Frequently? Retrieved December 13, 2016, from http://www.smithsonianmag.com/science-nature/why-do-we-blink-so-frequently-172334883/

Williams, R. L., II. (2017). Engineering Biomechanics of Human Motion. Retrieved December 13, 2016, from http://www.ohio.edu/people/williar4/html/PDF/Supplement4670.pdf

Does your heart stop when you sneeze? (n.d.). Retrieved December 13, 2016, from http://loc.gov/rr/scitech/mysteries/sneeze.html

Why does hair turn gray? (n.d.). Retrieved December 13, 2016, from http://www.loc.gov/rr/scitech/mysteries/grayhair.html