K-1211 might be an imaginary friend, but he's no stranger to the kind of fatigue that comes from having cancer treatment. Thankfully, he's got enough energy to talk about being tired. For more, go to: https://www.imaginaryfriendsociety.com/ The Imaginary Friend Society is a cast of characters who star in a series of animated films that help explain confusing cancer-related topics in a way that's kid-friendly.