Random Human Facts

    96 facts tagged with Human Facts

    The human brain doesn't stop developing until about 25 years old.
    102
    The adult human brain weighs about 3 pounds (1,300-1,400 g).
    99
    A person can live without food for about a month, but only about a week without water.
    156
    Enamel is hardest substance in the human body.
    61
    After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
    139
    Most of us have microscopic, worm like mites named Demodex that live in our eyelashes and have claws and a mouth.
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