Who is prone to a 25% decrease in pulmonary function MEF?

MEF25% reduction in lung function is usually associated with various respiratory diseases and unhealthy lifestyle habits. Individuals who smoke long-term, suffer from chronic obstructive pulmonary disease (COPD), have bronchial asthma, are exposed long-term to harmful gases or dust environments, or have lung diseases such as pneumonia or pulmonary fibrosis are more likely to experience a MEF25% decline in lung function. If abnormalities are detected, prompt medical consultation is recommended. Detailed analysis is as follows:

1. Long-term smokers: Long-term smoking is one of the main factors leading to decreased lung function. Harmful substances in tobacco damage lung cells and cause airway inflammation and narrowing, thus affecting expiratory flow. Therefore, long-term smokers are prone to MEF25% reduction in lung function.

2. Patients with chronic obstructive pulmonary disease: Patients with COPD have persistent airflow limitation, mainly caused by chronic airway inflammation and airway remodeling. As the disease progresses, the narrowing of small airways worsens, resulting in a decline in MEF25% lung function.

3. Patients with bronchial asthma: Airways of patients with bronchial asthma are hypersensitive to irritants, which can easily trigger airway inflammation and spasms. This inflammation and spasm affect the normal expulsion of airflow, leading to a decrease in MEF25% lung function. Particularly during asthma attacks, this indicator may significantly decline.

4. Individuals exposed long-term to harmful gases or dusty environments: People who work long-term in environments with harmful gases such as industrial exhaust and vehicle emissions, or with dust such as asbestos and silica dust, are prone to inhale these harmful substances, causing lung damage. These substances can cause airway inflammation and narrowing, thus affecting lung function and leading to a decrease in MEF25%.

5. Individuals with lung diseases such as pneumonia or pulmonary fibrosis: Lung diseases like pneumonia and pulmonary fibrosis can cause pulmonary inflammation, fibrosis, or mucus accumulation, thereby affecting pulmonary ventilation function. These conditions cause airway narrowing or obstruction, leading to a decline in MEF25% lung function.

To maintain lung health, it is recommended that these individuals undergo regular pulmonary function tests to detect and treat respiratory diseases promptly, while also improving lifestyle habits, such as quitting smoking and reducing exposure to harmful gases and dust.