A head-mounted device capable of more highly accurately measuring the physical conditions of a wearer as a worker that are necessary for estimating the possibility of heat stroke is provided. A head-mounted device includes an outer shell; a first channel as a gap between a head of a wearer and the outer shell; a second channel provided in the outer shell and connected to the first channel; a fan configured to send air from one of the first channel and the second channel to the other; a salinity sensor configured to measure salt concentration of sweat of the wearer; a first humidity sensor configured to measure an absolute humidity of intake air entering one of the first channel and the second channel; and a second humidity sensor configured to measure an absolute humidity of exhaust air exiting from the other of the first channel and the second channel.

Monitoring devices and monitoring technology are disclosed for a number of applications. A monitoring device that attaches to a measurement site includes at least one of an optical sensor, a temperature sensor, or first and second electrical contact sensors. A monitoring device or a smart garment can be powered by one or more bio-batteries that is each formed by electrodes in contact with the user's body (e.g., skin) or an animal. Various method and algorithms can be used to process signals received from the optical sensor, a temperature sensor, and/or first and second electrical contact sensors. The signals received from the optical sensor, a temperature sensor, and/or first and second electrical contact sensors can be transmitted to a host device. An application program on a host device can process the signals to compute one or more physiological parameters, waveform data, trend data, and/or one or more reports.

Earphone apparatus includes dry electrophysiological electrodes and, optionally, other physiological and/or environmental sensors to measure signals such as ECG from the head of a subject. Methods of use of such apparatus to provide fitness, health, or other measured or derived, estimated, or predicted metrics are also disclosed.

Hat, helmet, and other headgear apparatus includes dry electrophysiological electrodes and, optionally, other physiological and/or environmental sensors to measure signals such as ECG from the head of a subject. Methods of use of such apparatus to provide fitness, health, or other measured or derived, estimated, or predicted metrics are also disclosed.

Garments may adjust appearance based on various input. For example, an appearance (e.g., color scheme, logo, name, branding, insignia, graphic, and, or text) of a garment, for example a uniform or portion(s) thereof may change based on various conditions or contexts. Appearance may be responsive to type of item being delivered or vended or service to be performed. Appearance may be updated in response to detecting an item in proximity, a vehicle in proximity, proximity to a location or geo-fenced area, a seller of an item or service, a buyer of an item or service, a courier service, etc. The appearance may be updated autonomously.

A smart hat, a method and device for controlling the smart hat are provided. The smart hat includes a brim, and the method includes: acquiring configuration reference information of the brim, and the configuration reference information includes: attitude information of the brim and sunlight irradiation information; acquiring setting parameters according to the configuration reference information; reconfiguring the attitude of the brim according to the setting parameters.

An apparatus and method of use for a comprehensive transcranial low-level light therapy for use with ischemic brain tissue using a multitude of polychromatic Light Emitting Diodes (LEDs) embedded into a flexible head covering that stretches securely around the patient's cranium to bath the entire cranium cavity in a variable frequency, variable power density light spectrum, maximizing all beneficial effects to the cellular tissues whether or not they are specifically deprived of blood from the ischemic stroke event. The bulbs covering the n-p junction of the semiconductor LEDs directly contact the patient's cranial skin to maximize the depth of penetration of the wavelengths into the brain's cortex cells. By using many individual point-source LEDs emitting all around the cranium, greater therapeutic benefit can be achieved as more of the cortex tissues are irradiated.

A method of authorizing performance of transcranial magnetic simulation on a for a using a head mount adapted to bear one or more magnetic assembly devices having unique identifiers. The method comprises connecting the one or more magnetic assembly devices to a control device, each magnetic assembly device being installed at a location on the head mount, receiving, at the control device, the identifiers of the connected magnetic assembly devices. determining whether the installed magnetic assembly devices are authorized for the treatment based on the received identifiers and treatment configuration information in a database, and energizing the connected magnetic assembly devices based on the determination of authorization.

A hat for a head of a person. The hat can include an illumination system configured to illuminate a hollow interior of the hat. The hat includes light-transmissible material configured to permit light from the light source to pass from the hollow interior to an exterior of the hat to be visible from the exterior of the hat body. A noise maker party hat can include a mouth piece and a sound wave guide.

A headgear for placing sensors on a subject's head includes a centerpiece; a plurality of arms attached to and radiating outward and generally downward from the centerpiece; and sensor tips attached to the dorsal ends of at least some of the arms. At least one of the plurality of arms is a lower arm that is elastic and/or spring-like. When the headgear is placed on a subject's head, the at least one lower arm is so disposed in relation to the maximum circumference of the subject's head that the at least one lower arm must be bent outward for placement of the headgear on the subject's head and thereby provide a reactive force toward the head that causes the at least one lower arm to grasp at least a portion of the head that is at and/or below the maximum circumference of the head.