Rare Condition Allows Woman to Draw on Her Skin Without Ink

Is it really possible for this woman to draw on her skin using no ink? Watch as pressure only makes her skin respond. What is this? | For more Outrageous Acts of Science, visit http://science.discovery.com/tv-shows/outrageous-acts-of-science/#mkcpgn=ytsci1 Catch Outrageous Acts of Science Saturdays at 9/8c on Science! Subscribe to Science Channel: http://www.youtube.com/subscription_center?add_user=sciencechannel Watch full episodes: http://bit.ly/OASFullEpisodes Check out SCI2 for infinitely awesome science videos. Every day. http://bit.ly/SCI2YT Download the TestTube app: http://testu.be/1ndmmMq