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What causes drowsiness around 9 a.m. every day?

Sep 13, 2023 Source: Cainiu Health
Dr. Guo Xiheng
Introduction
Generally, feeling sleepy around 9 a.m. each day may be caused by the body's physiological rhythms, insufficient sleep, improper diet, unhealthy lifestyle habits, low blood sugar, and other factors. The human body has an internal biological rhythm, resulting in different states at various times of the day. In the morning and afternoon, higher levels of cortisol are secreted and body temperature slightly increases, which can easily lead to drowsiness.

Generally, feeling sleepy around 9 a.m. each day may be caused by the body's physiological rhythms, lack of sleep, improper diet, unhealthy lifestyle habits, hypoglycemia, and other factors. A detailed analysis is as follows:

1. Physiological Rhythm

The human body has an internal biological rhythm, resulting in varying states at different times of the day. In the morning and afternoon, higher levels of cortisol are secreted and body temperature slightly increases, which can make a person feel drowsy. This is a normal phenomenon and does not require concern.

2. Sleep Deprivation

If one does not get enough sleep the previous night, especially insufficient deep sleep, extreme fatigue may occur around 9 a.m. the next day. Therefore, maintaining adequate sleep is one of the key measures to prevent daytime sleepiness.

3. Improper Diet

Consuming too many or too few calories can disrupt normal metabolism, leading to fatigue and drowsiness. In particular, eating excessive sugary snacks causes a rapid spike in blood glucose followed by a sharp drop, triggering feelings of fatigue. Patients are advised to maintain regular eating habits and avoid overeating.

4. Unhealthy Lifestyle Habits

Poor lifestyle habits such as prolonged oxygen deficiency, excessive fatigue, or direct exposure to intense sunlight can impair bodily functions and lead to sleepiness. It is recommended that patients maintain a healthy daily routine, take appropriate rest, and pay attention to dietary habits.

5. Hypoglycemia

Excessive sleepiness at 9 a.m. may also be caused by hypoglycemia. Skipping breakfast in the morning may lead to low blood sugar, potentially causing cerebral ischemia and hypoxia, resulting in the aforementioned symptoms. Patients can improve their condition by promptly consuming sugary foods such as chocolate or cream cakes. At the same time, they should maintain a balanced diet and avoid binge eating or picky eating.

Besides the above reasons, conditions such as neurasthenia or hyperlipidemia could also be responsible. It is recommended to visit a hospital for diagnosis and, under medical guidance, receive appropriate treatment based on the specific situation.

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