[VIDEO] Gold fever: 5 surprising uses for gold

Yes, gold is an expensive metal but did you know it's also extremely useful? It detects and fights cancer, protects astronauts and satellites from harmful rays, cleans the air and even eases arthritis.

Surprising facts:

• A study by the Academy of Sciences found if you mix gold nanoparticles with tea and then drink it, the particles of each combine and latch onto and attack prostate cancer.

• Pure gold attached to the underside of the eye lid will ease problems with people who have facial paralysis.

• Pure gold, when injected into joints, can ease arthritis.

• The University of Washington says injected gold can reduce swelling, damage, stiffness, and pain. 

Thanks to DNews, here are some other surprising facts about gold you probably didn’t know.

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