An apparatus is wearable by a patient for treating the patients brain. The apparatus includes a body which covers at least a portion of the patients scalp when the apparatus is worn by the patient. The apparatus further includes a plurality of elements. Each element has a first portion which conforms to a corresponding portion of the patients scalp when the apparatus is worn by the patient. Each element has a second portion which conforms to a light source removably contacting the element. Each element is substantially transmissive to light from the light source to irradiate at least a portion of the patients brain