There are many medical reasons that can cause black stools that are tarry with a foul smell, but sometimes dark stools are caused by eating certain foods or taking iron supplements. However, black stools can also be a result of bleeding, and the darker color indicates that the blood could be coming from a point in the upper gastrointestinal tract.
Gertrude Levandowski survived a 96-hour procedure at a Chicago hospital to remove a giant ovarian cyst; the longest surgery. The second longest surgery ever was 40 hours long and that was to remove 6 limbs from a 8 limed baby in India. But the most common longest surgery is spinal cord surgery it is a 14 hour surgery.
A singer who hasn't cut her fingernails in two decades has shown off her incredible talons at the Guinness World Records 2014 launch in London. Chris Walton, 47, holds the title for the world's longest fingernails after she stopped clipping them in 1993. They now reach more than 20 feet, twisting and turning in a way that would appear to make even the most simple tasks near impossible.