Coming soon -- a cure for jet lag!

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Written By: Editorial Team | Published : September 15, 2014 5:53 PM IST

jet-lagScientists have finally found the mechanism that keeps the circadian clock in sync, which could ultimately help in curing jetlag and other related diseases. Researchers at the UNC School of Medicine have discovered how two genes, Period and Cryptochrome, which keeps the circadian clocks in all human cells in time and in proper rhythm with the 24-hour day, as well as the seasons.

The study has implications for the development of drugs for various diseases such as cancers and diabetes, as well as conditions such as metabolic syndrome, insomnia, seasonal affective disorder, obesity, and even jetlag. In all human cells, there are four genes, Cryptochrome, Period, CLOCK, and BMAL1, which work in unison to control the cyclical changes in human physiology, such as blood pressure, body temperature, and rest-sleep cycles. The way in which these genes control physiology helps prepare people for the day. This was called the circadian clock.

When people try to fast-forward or rewind the natural 24-hour day, such as when they fly seven time zones away, their circadian clocks don't let them off easy; the genes and proteins need time to adjust. Jetlag would be the feeling of people's cells "realigning" to their new environment and the new starting point of a solar day. Aziz Sancar, MD, said that now they could screen for drugs that target these proteins and they know to expect different outcomes and why they get those outcomes.

The study is published in the journal Genes and Development.

What is Jet lag?

Jet lag is a temporary sleep disorder caused when someone travels across two or more time zones rapidly.' The main reason for its occurrence is that it throws our normal functions out of sync. 'While travelling across a number of time zones the body clock experiences changes to what its accustomed to, like routine changes in daylight and darkness resulting in disturbances in eating, sleeping, hormone variation and routine body temperature variation.

Here are some symptoms of Jet lag

The common symptoms of jet lag include disturbance in sleep, indigestion, fatigue, bowel disorder, attention deficiency and general irritability.

How to deal with jet lag

While it's impossible to avoid jet lag, there are ways to hasten the recovery process. Here are some tips:

  • Sunlight is the most important circadian rhythm regulator. On a flight towards the west, get bright morning light at your new destination, and avoid afternoon and evening light exposure. On eastward flights, avoid early light exposure in the morning and get as much light as possible in the afternoon and early evening. The light helps shift your body's circadian clock.
  • Melatonin is a hormone that is being studied for its use in treating the symptoms of Jet lag, but its availability as a treatment in many countries is an issue.
  • Avoid beverages like caffeine as it offsets drowsiness, so it's advisable to time it as per the requirement. Read more about Jet lag causes, symptoms, prevention and treatment

With inputs from ANI

Photo source: Getty images

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