Please Explain: Hair

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Find out why we have hair, if blondes have more fun, how shampoo and conditioner actually work, and more when Assistant Professor of Clinical Dermatology Dr. Michele Hanjani and anthropologist Dr. Peter Frost give us the long and short of hair, from head to toe.

Call us live on the air at 212-433-9692 or post your questions and comments here.

Weigh in: Tell us about your worst bad hair day.