The effect of Sens.ai will depend on the person and selected Program. By virtue of Sens.ai's light stimulation (transcranial photobiomodulation, tPBM) users can expect to experience a felt state change immediately after a session of Boost or Train. tPBM uses infrared light to activate the mitochondria of the brain which stimulates oxygenation and energy production at the cellular level. Random controlled trials have shown measured cognitive enhancement immediately after tPBM.