In one embodiment, there is a computer-implemented method for delivering therapy to a user, comprising: providing data representative of an initial sensory stimulus to a sensory stimulus device and causing the sensory stimulus device to provide the initial sensory stimulus to the user； receiving alpha wave biometric data of the user from a brain electrical activity sensor while the sensory stimulus device provides the initial sensory stimulus； determining whether the alpha wave biometric data meets sensory stimulus adjustment criteria； if the alpha wave biometric data meets sensory stimulus adjustment criteria, adjusting the sensory stimulus provided to the user by providing data representative of an adjusted sensory stimulus to the sensory stimulus device and causing the sensory stimulus device to provide the adjusted sensory stimulus； and if the alpha wave biometric data fails to meet sensory stimulus adjustment criteria, continue causing the sensory stimulus device to provide the initial sensory stimulus to the user.
