Nitrous oxide (laughing gas) is a sedative that health care providers use to help you relax during procedures. Find out its risks, uses, and the effects it may have on your health.

For some five years, preparation for war has been part of the education of every child in Europe. Last week Europe's children carried out their M-Day assignments. Paris began to evacuate its ...

The cast of sci-fi series "Peacock" had to deal with night shoots, gas masks and, in Scott Speedman's case, learning how to ride a horse ...

Louisiana's mask is a full-face respirator similar to those often used by painters and sandblasters. Why is it controversial? Since nitrogen gas was first used to execute Kenneth Smith in Alabama ...

In Louisiana's gas execution method, a death row inmate would be forced to breathe the pure nitrogen through a gas mask fastened tightly to their face for either 15 minutes or for 5 minutes after ...