A colon is used to give emphasis, present dialogue, introduce lists or text, and clarify composition titles. Emphasis—Capitalize the first word after the colon only if it is a proper noun or the start ...

Q. When seniors gather, it doesn’t seem to take long before we get to our aches and pains. You must get more than your share of that. A. My friend, Pete, has instituted a colonoscopy rule.

A simple blood test has shown promising results in accurately detecting colon cancer, a deadly disease that is rising at an ...