They calculated the ratio of the measurements of the first and last breaths. Fifteen patients who had a ratio of less than one were treated for three days in hospital. But 28 patients with a ratio of more than one were released after a day. Asthma is one of the most common chronic diseases. The disease, which affects the small tubes that carry air in and out of the lungs, has risen by more than 50 percent in developed countries in the last 25 years.
Scientists suspect that sterile modern lifestyles are contributing to the increase in cases.
There is no cure, but drugs can relieve many of the symptoms. All rights reserved.