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Dr. Know tackles the myth that a higher SPF number on your sunscreen equals more protection. Does 75 actually work better than 15? Find out as two human lab rats are taped up then slathered with lotion, resulting in a zebra-like tanning test.
Dr. Know is real-life physician Paul Trotman. Join him as he debunks, deflates, and demystifies many of the myths we've been told about staying healthy. Topics range from the puzzling and exciting to the titillating and scary, but they're always interesting and filled with facts that will make you say, "I didn't know that."