1 The brain makes up about 2 percent of a human's body weight. 2  The cerebrum makes up 85 percent of the brain's weight. 3  It contains about 86 billion nerve cells (neurons), the gray matter.
Rooney Mara's Height is 5ft 3in (160 cm). American Actress best known for her portrayal of Lisbeth Salander in the US remake of The Girl with the Dragon Tattoo.
Emma Roberts Height is 5ft 1.75in (157 cm). American Actress best known for appearing in films like We're The Millers, Scream 4, Aquamarine and Wild Child. In a ScreenCave.com interview she mentioned her height, saying I was also in heels because I was too short.