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About two-thirds of all adults partake in this mind-altering substance, yet many do not consider it a drug. But if you've ever seen someone who's had too much to drink, you know that alcohol has profound effects on the mind and body.
Have you seen investigators on crime shows who spray some stuff on a "clean" carpet and suddenly -- blood stains! Well, of all the fictional technology on TV, it turns out this stuff is real! Find out how luminol reveals the blood.