If it's really brainwave audio and there's a buzz in the background, it's definitely effective.

1. Introduction:

Brain wave is a method to record brain activity by using electrophysiological indicators. When the brain is active, a large number of postsynaptic potentials generated synchronously by neurons are summarized. It records the changes of electric waves during brain activity, and it is the overall reflection of electrophysiological activities of brain nerve cells on the surface of cerebral cortex or scalp.

Brain waves originate from the postsynaptic potentials of dendrites at the top of pyramidal cells. The formation of brain wave synchronous rhythm is also related to the activity of cortical thalamic nonspecific projection system.

2. Clinical test:

Brain wave or EEG is a sensitive objective index, which can not only be used in the basic theoretical research of brain science, but also has more important significance in its clinical practice and is closely related to human life and health.

Brain wave is a necessary basis for the diagnosis of epilepsy, and it is also very helpful for the diagnosis of various intracranial lesions, such as stroke, encephalitis, brain tumor and metabolic brain lesions. At present, EEG is still the most objective basis for studying sleep. By monitoring the changes of EEG during sleep, people can distinguish different periods of sleep.