Although actinic keratosis - rough, scaly patches of skin that result from too much sun - is very common, it is classified as a premalignant condition that can develop into squamous cell carcinoma. Fortunately, there are many effective methods that can slow that development, or in some cases interrupt it completely. This program lets viewers know how people with AK can lower their risk of invasive skin cancer. In addition, a former pro football player whose AK progression resulted in the loss of part of his nose stresses the importance of limiting unprotected exposure to the sun. *Closed Captioned