How prevalent is asthma among adults in the United States?
The National Center for Health Statistics (a division of the U.S. CDC) reported that 18.4 million American adults and 6.2 million children suffered from asthma in 2015. Many people develop asthma in childhood, but others develop the disease later in life—known as adult onset asthma. You can even first begin experiencing symptoms of the disease at age 50 or older.