At 30, Chris Lopez was hitting his stride. He was attending culinary arts school in Dallas. He was meal prepping and hitting the gym regularly, focused on getting a degree and setting up his life right. His symptoms were easy to dismiss, at least at first. Except food poisoning doesn't typically last for weeks on end, and doesn't leave blood in your stool. He rapidly lost weight, from 175 pounds to 145 in a single summer — without eating less. "I was pretty much like a skeleton," he said. Lopez went to his doctor, who eventually decided to do a colonoscopy to learn more. That's when they discovered a "grapefruit-sized" tumor in his colon, he said. Lopez saw the scan and couldn't believe his eyes. Colon cancer? He was so young, healthy, and fit. Stories like Lopez's are increasingly common. Colon cancer rates are rocketing among athletic young people in their 20s, 30s, and 40s, and survival rates are dropping. Click the link in our bio to learn what doctors say may play a role in th...