What Causes Nocturnal Asthma?
If you wonder what the connection is between asthma and nighttime, there are several possible explanations. Some experts believe that natural changes to the body’s internal rhythm, which occur over the course of the night, can affect the respiratory system and trigger nocturnal asthma in certain people. In addition, lung function in general seems to decline during the night and this can be enough to set off symptoms for some asthmatics. Further, people who use fast-acting relief inhalers before bed may find that when the medication’s effect wears off after five or six hours, they will suddenly have a reoccurrence of symptoms that interrupts their sleep. In addition, people with sleep apnea, allergies, or reflux disease may be at an increased risk for nocturnal asthma.
