Asthma is a condition in which the airways narrow and swell, making breathing difficult and triggering coughing, wheezing, and shortness of breath. While the exact cause of asthma is unknown, it is believed to be due to a combination of environmental and genetic factors. Here are some factors that can trigger asthma in adults:

• Allergens: Substances that cause allergies, such as pollen, dust mites, mold spores, pet dander, or particles of cockroach waste, can trigger asthma.

• Respiratory infections: Viral respiratory infections, such as colds, flu, and respiratory syncytial virus (RSV), can trigger asthma attacks.

• Occupational exposures: Exposure to certain elements in the workplace, such as chemical fumes, gases, dust, and molds, can cause asthma symptoms.

• Exercise: Physical activity, especially in cold air, can trigger asthma attacks.

• Air pollution: Outdoor air pollution, such as from factories, cars, or wildfire smoke, can trigger asthma attacks.

• Weather: Bad weather, such as thunderstorms or high humidity, can trigger asthma attacks.

• Strong emotions: Strong emotions, such as stress or anxiety, can lead to asthma attacks.

• Medications: Some medicines, such as aspirin and nonsteroidal anti-inflammatory drugs (NSAIDs), can trigger asthma attacks in some people.

• Obesity: Being overweight or obese can increase the risk of asthma and make symptoms worse.

It is important to identify and avoid triggers to manage asthma symptoms. If you experience asthma symptoms, it is recommended to see a doctor for proper diagnosis and treatment.