Why can't I sleep due to excessive internal heat ("shang huo")?

Sleeplessness caused by excessive internal heat (commonly known as "Shanghuo" in traditional Chinese medicine) may result from multiple factors, mainly including the following: 1. **Excessive Liver Fire**: Patients may experience irritability, anger, dry mouth, and sore throat, which may lead to insomnia. 2. **Excessive Stomach Fire**: Symptoms such as abdominal distension, indigestion, nausea, and constipation can disrupt sleep. 3. **Excessive Heart Fire**: This directly manifests as insomnia and vivid dreams, making it difficult for patients to fall asleep. 4. **Environmental Factors**: For example, a dry environment may cause dehydration and physical discomfort, leading to sleep disturbances. 5. **Lifestyle Habits**: Unhealthy habits such as staying up late and irregular eating patterns may affect the circadian rhythm and sleep quality. 6. **Emotional Stress**: Prolonged anxiety, tension, and other emotional issues can also impair sleep quality. Sleeplessness due to excessive internal heat may be the combined result of bodily imbalances, lifestyle habits, and emotional stress. It is recommended to alleviate symptoms by adjusting lifestyle habits, reducing emotional stress, and improving the sleep environment. Patients with concerns should seek timely medical advice.