Asthma is a chronic respiratory condition with no known cure. It impacts people of all ages through episodic constrictions of the airways, which may be even worse than it sounds. Approximately 334 ...

London’s Great Smog of December 1952 was the largest in a series of “pea soupers” which brought normal activity to a halt across the capital. The smog lasted from December 5 to December 9 and led to a ...