Bruce Jenner's skin cancer scare illustrates a very important reminder to everyone—wear your sunscreen!
The E! star made a surprise stop at Catt Sadler's house to give the E! News correspondent some tips for her upcoming half-marathon (fun fact: running on grass is a lot better for you than running on pavement), and along with the Olympian's words of wisdom, Jenner gave E! News an exclusive update on his skin cancer scare and shared what caused it.
"It's all sun damage from the '60s and '50s when I was competitively water-skiing and living on a lake and all my training outside," he told us.