Random Human Facts

    96 facts tagged with Human Facts

    It takes about 20 seconds for a red blood cell to circle the whole body.
    102
    The human brain doesn't stop developing until about 25 years old.
    102
    The human eye blinks an average of 4,200,000 times a year.
    233
    A person will create enough saliva to fill two average size swimming pools during his lifetime.
    191