About one in every 12 people have asthma, which is close to 25 million people in the United States alone. But new research might have these millions of people rethinking their diagnosis completely. A study published in the Journal of the American Medical Association revealed that many adults with diagnosed asthma may not, in fact, have asthma at all.
The study included over 600 men and women who had been diagnosed by a physician in the last five years. Researchers gave them a series of drug challenges and spirometry tests (the standard diagnostic methods for asthma) to confirm or rule out the disorder. Their results were pretty shocking; they found that in over 33 percent of the participants, a current asthma diagnosis could not be made.