Redheads may be at higher risk of melanoma even without sun

A study on mice suggests that pheomelanin pigment, which gives rise to red hair, is itself a potential trigger for melanoma, the deadliest form of skin cancer.Doctors have long urged people with red hair, fair skin and freckles to avoid the sun and its damaging ultraviolet rays. To venture outdoors without a wide-brimmed hat and sunscreen was simply courting skin cancer, they cautioned.

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