A new study shows people who are in the habit of climbing stairs are less likely to die from heart disease compared to those who don't. Stair climbers also had a slight boost in longevity.

A trial for a mass environmental injury case begins in Hawaii on Monday, more than two years after a U.S. military facility poisoned thousands of people when it leaked jet fuel into drinking water.

Although HIV transmission from contaminated blood through unsterile injection is a well-known risk, the CDC said this is the first documentation of probable infections involving cosmetic services.

The aid group said the humanitarian situation in Gaza remains dire and that it has almost 8 million meals ready to distribute. The group halted efforts after Israeli strikes killed seven workers.