More adults under the age of 50 are being diagnosed with cancer and doctors aren't sure why exactly. The trend is apparent in specific types of cancers, such as colorectal and breast cancer. And doctors say that an increase in obesity and sedentary lifestyles could be to blame. What questions do you have about early-onset cancer? Just Asking spoke with Tim Caulfield, Law professor and research director of the Health Law Institute at the University of Alberta, and an expert in medical misinformation.