Pretty much every fitness tracker and smartwatch has an optical heart rate sensor, but they're not always perfectly accurate.

Bank workers and Emergency Medical Service personnel beat the odds by saving Carrie Pintar from a heart attack last week.

One man is in the hospital after being pursued by a Kansas State Trooper late Saturday night, resulting in a serious injury ...

Marie Doyle left her apartment to pick up breakfast. When she returned, she saw flames and started screaming to wake her ...

The Los Angeles Galaxy defeated the New York Red Bulls 2-1 to clinch a record-extending sixth MLS Cup crown on Saturday, ...