Debbie Lovensheimer’s hiking buddies looked concerned after traversing 25 miles on the Appalachian Trail. Normally, Debbie thrives as their fearless leader, but this time she felt bad. In addition to unusual fatigue, she consistently experienced stabbing pain after she ate.

With no symptoms in its early stages, most people don’t find out they have lung cancer until the disease has progressed to a point that’s difficult to treat.

After her morning ritual on the treadmill, Terri Scott arrived at Cambridge Primary School, where she served as an interventional reading specialist for kindergarten through second grade. She completed her first meeting of the day, walked toward the door and collapsed to the floor.

Tami Swope woke with an odd tightness in her neck. Describing it as “pressure,” the sensation didn’t go away. When Tami arrived at the emergency department, she lost consciousness, and her heart stopped beating. She was suffering from a widowmaker heart attack.