I almost brushed off sharp stomach pain — it turned out to be stage 3 colon cancer

Mark Seguin was diagnosed with colon cancer at 35. He's discovered exercise can dramatically reduce the risk of colon cancer recurrence. Courtesy of Mark Seguin A 35-year-old father thought he had appendicitis. Doctors diagnosed him with late-stage colon cancer instead. He has tweaked his diet and exercise routine to reduce his risk of recurrence. This as-told-to essay is based on a conversation with Mark Seguin, who was surprise-diagnosed with colon cancer five years ago at age 35. It's be...