What could be the reason for feeling dizzy after running for a short while?

Dizziness after running may be caused by physiological factors, or it could be related to pathological conditions such as hypoglycemia or anemia. The specific causes are as follows:

I. Physiological Factors

Individuals who normally lack physical exercise may experience dizziness when suddenly starting to run, as the body cannot cope with the sudden exertion. This condition is usually normal and tends to gradually resolve after resting for a period of time.

II. Pathological Factors

1. Hypoglycemia

Running on an empty stomach can lower plasma glucose levels. If glucose is not replenished promptly, hypoglycemia may occur, leading to symptoms such as dizziness, palpitations, and weakness. Symptoms can be relieved by drinking sugary water or beverages containing sugar. In severe cases, intravenous glucose administration under medical guidance may be necessary.

2. Anemia

Patients with anemia may experience significantly reduced oxygen-carrying capacity of hemoglobin after running, resulting in severe cerebral hypoxia and causing symptoms such as dizziness, fatigue, and drowsiness. It is recommended to consume iron-rich foods such as chicken liver and pork liver regularly. When necessary, red blood cell transfusion according to medical advice may be required for supportive treatment.

Besides the above-mentioned causes, dizziness after running could also result from other conditions such as hypertension, cerebral ischemia, or congenital heart disease. Therefore, prompt medical evaluation and treatment at a hospital are essential.