Rock G. Positano, D.P.M., M.P.H. ’89, a specialist in foot and ankle health, is writing a health column for The Huffington Post. His first columns offered warnings about the dangers of flip-flops and heavy backpacks for schoolchildren. Positano, who directs the Non-surgical Foot and Ankle Service at the Hospital for Special Surgery in New York City, also writes a health column for the New York Post.