No coughing or wheezing, but just can't catch one's breath—what could be the reason, and what should be done?

Shortness of breath without coughing or wheezing may be caused by emotional excitement, oxygen-deficient environments, coronary heart disease, anemia, or reduced lung function. Symptoms can be improved through calming emotions, improving the environment, or medication. If symptoms occur frequently or are accompanied by chest pain or dizziness, prompt medical attention is necessary.

1. Emotional excitement: Sudden intense emotions such as anxiety or anger can lead to rapid breathing and hyperventilation, resulting in isolated shortness of breath. It is recommended to move immediately to a quiet environment and use deep breathing with slow exhalation to calm down, avoiding extreme emotional fluctuations.

2. Oxygen-deficient environment: Being in enclosed, crowded, or high-altitude areas with low oxygen levels can cause bodily hypoxia and shortness of breath. It is advised to open windows for ventilation or move to a well-ventilated area; supplemental oxygen via oxygen devices may be necessary when needed.

3. Coronary heart disease: Insufficient blood supply from the coronary arteries leads to myocardial oxygen imbalance, which may cause isolated shortness of breath even at rest, often accompanied by chest tightness and palpitations. Patients may take medications such as nitroglycerin tablets, enteric-coated aspirin tablets, and atorvastatin calcium tablets under medical guidance to relieve symptoms.

4. Anemia: Low hemoglobin levels reduce the blood's oxygen-carrying capacity, leading to tissue hypoxia and persistent shortness of breath, along with fatigue and pallor. It is recommended to take ferrous succinate tablets, ferrous fumarate granules, vitamin C tablets, or other medications under a doctor’s supervision to alleviate discomfort.

5. Reduced lung function: Impaired ventilation or gas exchange in the lungs means oxygen supply cannot meet bodily demands even at rest, causing isolated shortness of breath that worsens with physical activity. Patients may use salmeterol fluticasone inhalation powder, tiotropium bromide powder inhaler, or sustained-release aminophylline tablets under medical guidance to improve symptoms.

Maintain good indoor air circulation, follow a regular sleep schedule and avoid staying up late, engage in mild exercises such as walking or tai chi, maintain a balanced diet rich in nutrients, pay attention to your body's signals, adjust promptly when discomfort arises, and seek professional medical help when necessary.