Is cerebral hypoxia the reason for feeling drowsy during morning runs?

During morning runs, blood may concentrate in the limbs, potentially reducing blood supply to the brain and causing cerebral hypoxia, which might be one reason for feeling drowsy after early morning jogging. However, this drowsiness could also be caused by insufficient sleep, hypoglycemia, or other factors. If any abnormalities occur, timely medical consultation is recommended. Detailed explanations are as follows:

During morning runs, blood may flow more to the limbs to meet the demands of muscular activity, thereby reducing the volume of blood flowing to the brain. This decreased cerebral blood supply may lead to cerebral hypoxia, resulting in symptoms such as drowsiness and dizziness.

However, feeling drowsy during morning runs may also be caused by various other factors. For example, if sleep quality is poor or sleep duration is insufficient, and the body does not get adequate rest, fatigue and sleepiness naturally occur after morning jogging. Additionally, not eating before running or insufficient food intake leading to low blood glucose levels can also affect the function of the central nervous system, resulting in symptoms such as tiredness and drowsiness.

When engaging in physical activities such as morning runs, one should ensure good sleep quality and sufficient rest time, avoid exercising on an empty stomach, and prevent excessive fatigue.