What effect does secondhand smoke have on individuals with asthma?

Secondhand smoke is known to be a significant irritant that can exacerbate asthma symptoms in individuals already diagnosed with the condition. When people with asthma are exposed to secondhand smoke, they may experience increased inflammation in their airways, leading to heightened sensitivity and bronchoconstriction. This can result in more frequent and severe asthma attacks, worsening overall respiratory health.

The harmful components in cigarette smoke can provoke respiratory symptoms such as coughing, wheezing, and shortness of breath. Additionally, prolonged exposure can lead to long-term complications, making asthma management more challenging. Therefore, recognizing that secondhand smoke can escalate both the frequency and severity of asthma symptoms is crucial for asthma management and prevention strategies.

The other choices do not accurately reflect the established impact of secondhand smoke on asthma, as the evidence consistently shows adverse effects rather than protective or neutral consequences.