 have struggled with serious health issues in their 20s. Again, that was Kirsten Salpini in Durham, North Carolina, and we will be hearing more stories from listeners throughout the hour. Well, I'd like to bring Dr. Tim Rebeck into the conversation. He is a professor of cancer prevention and epidemiology at the Harvard T.H. Chan School of Public Health. Dr. Rebeck, welcome to On Point. Thank you for having me. Great to be here.