PROBLEM TO BE SOLVED: To reduce the stress of a subject by securing the flexibility of the movement of the subject during the execution of a light health maintenance method.SOLUTION: A light irradiation device 1 includes: a goggle part 2 and a headphone part 3 as a holding part holding the goggle part 2 on the face of a subject. The goggle part 2 has irradiation parts 5 irradiating light to the eyes of the subject in a state that the subject wears the goggle part 2, and the headphone part 3 has means generating one or more of sound, a current of air, and fragrance.