"I've had it all!" jokes Sara Andrés Barrio with the smile that always characterizes her despite the adversity that has touched her. The Paralympic athlete arrives from a hectic training session where her prostheses have just been adjusted as every two weeks.

She calls them "robot feet," and they have replaced flesh-and-blood feet since they were amputated in 2011. In Spain, around 6,179 new cases of skin cancer are detected annually and cause more than 900 deaths.