Does standing up while attending a lecture reduce drowsiness?

Standing during lectures generally helps reduce drowsiness in most situations, but it may not be suitable for individuals with hypoglycemia or anemia. If any discomfort occurs, prompt medical attention is recommended. Detailed explanations are as follows:

In general circumstances, standing while attending lectures can help reduce sleepiness. When individuals transition from a sitting to a standing position, muscle activity increases, thereby improving blood circulation and enabling the brain to receive more oxygen and nutrients, which enhances alertness and concentration. Furthermore, standing during lectures can change body posture, reducing physical fatigue and tiredness caused by prolonged sitting.

However, for individuals with hypotension, anemia, or other circulatory problems, prolonged standing may cause symptoms such as dizziness and fatigue. Additionally, if someone has conditions that make prolonged standing unsuitable—such as leg disorders or foot injuries—forced standing during lectures could increase physical strain and negatively affect health.

It is recommended to maintain a healthy lifestyle with regular作息 (作息 should be translated as "routine作息" here, but the word "routine" would be more appropriate in this context), ensure sufficient sleep, improve dietary habits, adjust physical condition, and maintain overall health.