Every couple of years, there’s an increase in devices that enable individuals to measure the bioelectrical activity of their brains at home. These devices exploit the occurrence of fluctuating brain wave frequencies, which vary according to the user’s psychophysical state. Driven by a pandemic-induced fondness for my residence, I decided to purchase one of these gadgets. After several weeks, I sought to offer a subjective review of the chosen model and conduct an experiment using raw data.
