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”