A very rare type of cancer is on a sharp upward trajectory in younger generations, and no one knows why. Recent research in the US reveals that Gen X-ers and Millennials are three to four times more likely than older generations to be diagnosed with cancer of the appendix, the finger-sized organ hanging off our digestive tract that few think about unless something goes awry. Historically, cancers of the appendix almost always impacted older people, but today, 1 in every 3 appendiceal cancer