Fatigued individuals are less alert, have reduced ability to process information, and have slower reaction times than usual, contributing to operator errors and procedural violations that severely damage people and property. Neurables core technology, BrainOS, is a highly accurate and non-invasive electroencephalogram (EEG) signal processing solution that collects, cleans, and interprets the brain's spontaneous electrical activity to deliver actionable insights to an end-user application. The signal-to-noise benefits allow devices to have fewer sensors, to be flexibly placed in convenient locations (ex. around the ears), and have reduced cost of components, while maintaining signal quality.