Happy Met Gala Monday to those who celebrate — but if you’re going out during the daytime, you may want to rethink the “naked dress.” While fashion fans all know the first Monday in May is when stars strut the red carpet at the Metropolitan Museum of Art’s Costume Institute Gala, the medical community knows it better as “Melanoma Monday,” marking the start of Skin Cancer Awareness Month . And as summer is right around the corner with sunnier days ahead, it’s important to take a look at how our wardrobe choices can affect cancer risk. The first Monday in May is the Met Gala — but it’s also Melanoma Monday. Getty Images Reducing the risk of skin cancer is essential, as more than 9,500 people are diagnosed daily and 1 in 5 adults will develop the disease by age 70. What you wear, from your head to your toes, can either reduce or increase your cancer risk, according to Gloria Lin, a board-certified dermatologist at Schweiger Dermatology in New York City.…