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Could it be asthma, at my age?

A man bends over to catch his breath.

April 23, 2026—We often think of asthma as a disease you get when you're young, and it usually is. But asthma can be diagnosed at any age. Recognizing the symptoms can help you get the treatment you need.

Why asthma now?

Experts aren't sure why some people develop asthma for the first time as adults. But, according to the Asthma and Allergy Foundation of America (AAFA), your chances of being one of them are higher if you:

Are a woman. This may be related to hormones or estrogen treatments.

Work around certain irritating substances, such as chemical fumes and air pollutants. Asthma that starts or worsens due to a person's exposure at work is called occupational or work-related asthma. About 1 in 6 adult-onset asthma cases is linked to work-related exposures.

Have allergies, which make you sensitive to things like pollen, pet dander, dust or mold.

Are exposed to pollution—for instance, if you live near a busy highway.

Are obese. Obesity is linked to developing asthma as well as having uncontrolled asthma.

Have gastroesophageal reflux disease (GERD). People with GERD often have heartburn, which occurs when stomach acids back up into the esophagus.

In some cases, what seems like adult-onset asthma may not actually be new. Some people have had asthma since childhood without experiencing symptoms, the AAFA reports. In other cases, childhood symptoms go away and then recur in adulthood.

Recognizing adult asthma

If you haven’t been diagnosed with asthma, it might be easy to confuse the symptoms with being out of shape. But there are important differences, notes the AAFA. If you're just out of shape, you might feel winded when you exert yourself. But that feeling won’t last long.

And you probably won't have these other signs and symptoms, which are more likely to be asthma:

  • Coughing. A lot of adults with asthma have a dry, persistent cough. The coughing may occur more at night (it may wake you up); when you exercise and for several minutes afterward; when you laugh; or when you're around irritants like smoke, cold air or fumes.
  • Chest tightness. Asthma causes the airways in the lungs to become narrow and tight and to make more mucus.
  • Wheezing. This is a whistling sound when you breathe in.
  • Lingering infections. Taking longer to get over lung infections can also be a sign of asthma.
  • Having a harder time doing your activities because of coughing or shortness of breath.

Speak up for your lungs

No matter your age, if your breathing isn't what it used to be, it's worth getting checked! If you think you might have asthma or other lung disease symptoms, let your doctor know. A test that measures your lung function can help with diagnosing asthma or ruling it out. If you do have asthma, treatment can help you manage your symptoms and take charge of your condition.

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