Fact: In the United States alone, an estimated 1.5 million people will be diagnosed with cancer this year — most frequently cancer of the prostate or breast. Approximately one in two U.S. men and one in three U.S. women will be afflicted by cancer in his or her lifetime.

React: Organize a fundraiser. Volunteer at a hospital. Be in the know: learn about early detection and prevention through diet and exercise. Avoid second-hand smoke.