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.
[on playing Wolverine] The character I play is actually only 1.6 meters [5' 3]. Before I had any kind of acting profile I was encouraged to lie about my height. I was told to say I was about six foot [1.83 meters] tall.