How long will I need to use the lights?
- For winter blues, most people use the lights daily each winter until the symptoms abate as days lengthen-typically in March or April.
- For jet lag, the bright lights are used prior to the trip
- For shift change fatigue, the lights are used prior to changing shifts.
- For sleep phase insomnias, the problem may be long-term for the elderly, but teens tend to “grow out of it”