Bad habits die hard—really hard. A new study shows that an alarming number of survivors of melanoma, the deadliest form of skin cancer, continue to tan and forgo sunscreen after beating the disease. Released by the American Association for Cancer Research, the research found that melanoma survivors, while more diligent than the general public, still practice bad habits when it comes to sun protection. Dr. Anees B. Chagpar of the Yale School of Medicine, the report’s author, called the results mind-blowing. “We found that more than a quarter of melanoma survivors never wear sunscreen,” she said.