The common reasons for frequent tiredness and drowsiness are lack of sleep, lack of nutrition and certain diseases, such as diabetes, hyperthyroidism and so on.
1. Lack of sleep: long-term fatigue, mental stress will lead to sleep deprivation, often stay up late, the brain does not get enough rest, there will be tired and sleepy.
2. Nutritional deficiencies: long-term poor diet, there will be a lack of minerals or vitamins, vitamins, the lack of nutrients in the human body, there will be fatigue, drowsiness and so on.
3. Certain diseases, such as diabetes, hyperthyroidism, etc., diabetes when the blood sugar control is not good, there will be fatigue, tired. Hyperthyroidism when the thyroid function is not stable will also appear fatigue, tiredness.
Normally in life, pay attention to the combination of work and rest, ensure adequate sleep, eat more nutritious food.