What's wrong with waking up confused?

After getting up, the mind is not clear, mainly manifested as: head drowsiness, lack of concentration, concentration decline, some people can even show memory decline, slow response, etc. First of all, you need to consider fatigue, irregular diet, too frequent smoking and alcohol, anxiety caused by these reasons, to consider pathological factors. General head drowsiness or not clear feeling, is due to the performance of brain hypoxia, such as oxygen thin plateau. There is also a long-term anemia caused by insufficient oxygen in the blood, resulting in hypoxia of brain cells and a feeling that the brain is not awake.