Study identifies why you’re a ‘night owl’ and it’s not your fault

Ever found that you can’t sleep early and mornings just stink for you?

Late Nights

Well it turns out it is not your fault. It is in your DNA.

DNA or deoxyribonucleic acid is self-replicating material existing in all organisms that carries genetic information.  It essentially is the unchangeable characteristics about yourself.

So now scientists have found at The Rockefeller University have discovered that a variant of the gene CRY1 slows down your biological clock also called circadian clock. It is the one that tells you when you are sleepy and when you need to wake up.

Night owls have a longer circadian clock than normal.

The study looked at 70 people to find a link between delayed sleep phase disorder (DSPD)  and CRY1. 39 had the CRY1 variant and the others didn’t.

Now check this. Carriers of the variant felt mid-sleep at 6am to 8am while those without it at 4am.

While most people have 24-hour cycles those who have DSPD delay it by 30 minutes.

Senior author Michael W. Young, the Richard and Jeanne Fisher Professor and head of Rockefeller’s Laboratory of Genetics:

Melatonin levels start to rise around 9 or 10 at night in most people. In this DSPD patient that doesn’t happen until 2 or 3 in the morning.

It gets even crazier.

First author Alina Patke, from The Rockefeller University:

Carriers of the mutation have longer days than the planet gives them, so they are essentially playing catch-up for their entire lives

Young adds that it is as if carriers suffer from a perpetual jetlag. (We know this feeling too well).

And in case you think you are a freak of nature, 10% of the general population reportedly suffer from DSPD.

There is no way to fix it. Not yet anyway.

With information from Rockerfeller University Newswire

The article was first published in Cell

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