The Homepage of the brain
The unimpressive appearance of the human brain gives few hints of its remarkable abilities. It is about two good fistfuls of quivering pinkish gray tissue, wrinkled like a walnut, with a consistency somewhat like cold oatmeal. The average adult man's brain has a mas of about 1600g; that of a woman averages 1450g. In terms of brain mass per body mass, however, males and females have equivalent brain sizes.