Why it matters: Asthma affects 25 million Americans, and the right inhaler can mean the difference between daily discomfort and well-controlled symptoms. Different inhaler types: Rescue inhalers work ...

Woman sitting on a bed reaching for her inhaler. In the U.S., 25 million people are affected by asthma. That’s roughly 1 in 13 adults and children. Asthma can be mild or severe. Some people with ...