Physical activity naturally leads to a depletion in the resources used to energize the body. Time spent exercising or being ...

Heat-related illnesses occur across a spectrum, and mild heat stress can quickly progress to life-threatening heat stroke if a person is exposed to dangerous conditions for too long.

Excessive heat outlooks: The outlooks are issued when the potential exists for excessive heat within the next three to seven days. It gives people time to prepare for the weather.

The cooling system in her second-story apartment in Albuquerque, New Mexico, had always been unreliable. But last summer, it failed for weeks, and the heat became unbearable. Erin Ashlock-Romero ...

Smoke from the Sistine Chapel may appear at two key times each day. In the morning, if no pope is elected on the first two ballots, expect smoke around 6 a.m. Eastern, noon Vatican time. If a pope ...

During a Papal Conclave, the world will be watching for white or black smoke from the Vatican's chimney. Here's what it means.

White smoke is created with potassium chlorate, lactose (milk sugar), and rosin, the sticky tree resin often used on violin bows. These recipes essentially form smoke bombs, a familiar tool in ...

For black smoke, the Vatican uses a mixture of potassium perchlorate, anthracene, and sulphur. The white smoke used to signal that a Pope has been chosen is created from potassium chlorate ...

To colour it according to the outcome, this burning is mixed with chemicals inside a second stove. For black smoke, the Vatican uses a mixture of potassium perchlorate, anthracene, and sulphur. The ...