http://articles.mercola.com/sites/articles/archive/2006/08/03/chlorinated-swimming-pools-jump-start-asthma.aspxThe incidence of asthma has risen by over 50 percent in developed countries in the last 25 years. As many as 150 million people worldwide suffer from asthma, and roughly 180,000 die from it each year. Exposure to chlorine bi-products, both in air andenCommunityServer 2008.5 SP1 (Build: 31106.3070)