A Gene Called CRY1 may Explain Why You are a Night Owl

by Bidita Debnath on  April 9, 2017 at 10:16 PM Research News
RSS Email Print This Page Comment bookmark
Font : A-A+

Are you a night owl and have trouble getting up in the morning? It may be because your internal clock is genetically programmed to run slowly, experts have found.
 A Gene Called CRY1 may Explain Why You are a Night Owl
A Gene Called CRY1 may Explain Why You are a Night Owl

The findings showed that a mutation in a gene called CRY1 alters the human circadian clock, which dictates rhythmic behaviour such as sleep/wake cycles.

People who are carriers of the gene variant experienced nighttime sleep delays of 2-2.5 hours compared to non-carriers, the researchers reported in the journal Cell.

"Carriers of the mutation have longer days than the planet gives them, so they are essentially playing catch-up for their entire lives," said lead author Alina Patke, from the Rockefeller University in New York City, US.

Night owls are often diagnosed at sleep clinics with delayed sleep phase disorder (DSPD) -- where a person's circadian ryhthm is delayed from the typical day/night cycle.

Mutation in CRY1 led to the development of DSPD, which affects up to 10 per cent of the population, according to clinical studies.

People with DSPD often struggle to fall asleep at night, and sometimes sleep comes so late that it fractures into a series of long naps.

People with DSPD also have trouble conforming to societal expectations and morning work schedules, which leads to anxiety, depression, cardiovascular disease, and diabetes.

The gene mutation was discovered while studying the skin cells of people with DSPD.

The circadian clock responds to external environmental cues, so it is possible for people to manage the effects of the mutation on sleep.

"An external cycle and good sleep hygiene can help force a slow-running clock to accommodate a 24-hour day," Patke said.

Source: IANS

Post a Comment

Comments should be on the topic and should not be abusive. The editorial team reserves the right to review and moderate the comments posted on the site.
Notify me when reply is posted
I agree to the terms and conditions

More News on:

DNA Finger Printing Amyotrophic Lateral Sclerosis (ALS) Weaver Syndrome 

News A - Z

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

News Search

Medindia Newsletters

Subscribe to our Free Newsletters!

Terms & Conditions and Privacy Policy.

Find a Doctor
Advertisement

Stay Connected

  • Available on the Android Market
  • Available on the App Store

Facebook

News Category

News Archive