More Asthma?But Why?
Asthma has increased by around 160% worldwide in the last 20 years and 25% of U.S. children suffer from it. This rise is a mystery to scientists. Some think it’s because children play indoors more so they don’t get enough exposure to bacteria, which can strengthen their immune systems. Others think smaller families may be the problem, as the youngest is usually the healthiest, since his immune system has been exposed to germs from all his siblings. Other researchers have even implicated margarine. The newest culprit is antibiotics.
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