What causes dizziness from lack of oxygen in singing

Singing hypoxia and dizziness are mostly caused by a drop in partial pressure of oxygen due to poor airflow.
Singing due to incorrect breathing, unable to change air or in a confined space singing and other reasons, may lead to different degrees of hypoxia. The brain tissue cells are very sensitive to hypoxia, resulting in neurological symptoms such as dizziness.
Singing hypoxia dizziness may also be the patient’s own existence of underlying diseases, such as anemia, low blood pressure, etc., hypoxia will lead to insufficient oxygen required by the body, the symptoms of the underlying diseases further aggravated.
If dizziness occurs due to lack of oxygen when singing, you should immediately rest for a few moments, and then carry out activities after the symptoms are relieved. If the symptoms of dizziness cannot be relieved after a period of rest, it is recommended to go to the hospital for diagnosis and treatment by a professional doctor.