Sunscreen usage is climbing, but so are melanoma and skin cancer rates: this, researchers say, is the sunscreen paradox.
"The problem is that people use sunscreen as a 'permission slip' to tan," said Dr. Ivan Litvinov, an Associate Professor in the Department of Medicine and Chair of the Dermatology Division at McGill University and co-author with Dr. Sandra Peláez, Dr. Richie Jeremian and Dr. Pingxing Xie of two recent studies that explore the sunscreen paradox.
Most people don't apply enough sunscreen or stay in the sun for hours after applying sunscreen in the morning."This gives them a false sense of security," said Litvinov. In the study, they found that Canadians living in Nova Scotia and Prince Edward Island -- provinces with high melanoma incidence rates -- were more likely to report using sun protection, more aware of the health risks of sun exposure, and more apt to follow the UV index. Despite this, they also received more sun exposure due to warmer temperatures and a tendency to engage in outdoor activities.
Interventions to address knowledge and practice gaps in sun protection and skin cancer prevention must consider this sunscreen paradox and the unique norms of communities around the world, he added.
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