WASHINGTON: The American scientists have found the reason behind jet lag and suggested that exposure to short flashes of light at night could help sleeping travellers adjust to new time zones and avoid jet lag.
The light beams travel through the eyelids and this tells the brain to re-set the body’s inner biological clock, the Stanford researchers believe, BBC reported. They tested the method in 39 volunteers and found it shifted a person’s body clock by about two hours. An hour of the flashlight therapy was enough to achieve this effect.
Body clock People’s bodies synchronise to the 24-hour pattern of daytime and night they are used to. And when they travel across time zones to a new light-dark schedule, they need to realign.
