Believe it or not, your lungs are six weeks old - and your taste buds just ten days! So how old is the rest of your body?
Read more: http://www.dailymail.co.uk/health/article-1219995/Believe-lungs-weeks-old--taste-buds-just-days-So-old-rest-body.html#ixzz0U7RI3fMr
