Random Brain Facts

    56 facts tagged with Brain Facts

    The adult human brain weighs about 3 pounds (1,300-1,400 g).
    99
    After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
    139
    Due to the angle at which the optic nerve enters the brain, staring at a blue surface during sex greatly increases the intensity of orgasms.
    252