Why do I experience shortness of breath whenever I work?

Shortness of breath during physical activity is usually caused by physiological factors or pathological conditions such as chronic bronchitis and chronic pulmonary heart disease. The specific analysis is as follows:

I. Physiological Causes

This typically occurs when a person works for prolonged periods, leading to excessive physical fatigue, which may result in symptoms such as rapid breathing and palpitations. This condition is generally not a cause for concern and can be relieved by adequate rest.

II. Pathological Causes

1. Chronic Bronchitis

This is usually caused by bacterial infection or chronic irritation from environmental factors, resulting in chronic non-specific inflammation of the mucous membranes of the trachea and bronchi. Symptoms include difficulty breathing, coughing, and shortness of breath. Patients can take medications such as levofloxacin tablets or amoxicillin capsules under medical supervision.

2. Chronic Pulmonary Heart Disease

This condition often results from long-term smoking or prolonged exposure to dusty environments, leading to pathological changes in lung tissue and the thorax. Increased pressure in the pulmonary arteries affects right ventricular dilation, causing symptoms such as reduced exercise tolerance, coughing, and respiratory failure. Treatment may include oral prednisolone tablets or inhaled beclomethasone dipropionate aerosol, used under a doctor's guidance.

In addition to the above causes, anemia, coronary atherosclerotic heart disease, and lung cancer may also lead to shortness of breath during activity. If the underlying cause is unclear, patients should promptly seek medical evaluation to determine the cause and receive appropriate treatment.