A picture is worth a thousand words. This is a photo of a truck driver whose face, for nearly 30 years, received the sun on the left side through the window of his truck. The ageing caused by the UV rays on that side of the face is more than evident.
This image has been published in The New England Journal of Medicine accompanied by an article written by doctors Jennifer Gordon and Joaquín Brieva of Northwestern University, Chicago (USA), who have documented and described this extreme case of unilateral dermatoheliosis in a man aged 69 years. This is not a Photoshop retouched photograph. Draw your own conclusions, especially now that the sunbathing season is on us. (Photo: NEJM)