MOST TEND TO THINK THAT THE COLOR CHANGE WAS BECAUSE OF MOOD CHANGE (HENCE MOOD RINGS.); THAT'S BECAUSE OF THE SPECIAL LIQUID CRYSTALS INSIDE THEM. HOWEVER, THOSE LIQUID CRYSTALS ARE MADE WITH MERCURY, ARSENIC, AND OTHER POISONOUS MATERIALS. SO MOOD RINGS, THE FAD OF THE 1970S... WERE THEY REALLY BENEFICIAL? WELL, ACTUALLY, THAT'S BECAUSE OF THE TEMPERATURE. IF THAT LEAKED, YOU'D BE IN A DIFFERENT MOOD ALTOGETHER!
