Which lifestyle factor is known to worsen asthma symptoms?

Obesity is recognized as a significant lifestyle factor that can worsen asthma symptoms for several reasons. First, excess body weight can create mechanical constraints on the lungs, leading to decreased lung function and increased difficulty in breathing. This physical pressure can exacerbate the airway inflammation commonly associated with asthma.

Moreover, individuals with obesity often experience a higher prevalence of gastroesophageal reflux disease (GERD), which can trigger asthma symptoms and contribute to airway irritation. There's also evidence suggesting that obesity can alter the immune response and promote chronic inflammation, which may negatively impact asthmatic conditions.

In contrast, physical activity is generally beneficial for individuals with asthma, as it can improve lung function and overall fitness levels. Smoking, while known to worsen asthma, specifically relates to the harmful effects of tobacco smoke on the lungs and is not categorized as a lifestyle choice in the same sense as maintaining a healthy weight. Alcohol consumption may not have the same direct and impactful relationship with asthma symptoms as obesity does. Therefore, among these factors, obesity stands out as a critical concern for asthma management.