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Dennis Grant
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Dennis Grant   My Press Releases

This is why you need more coffee to function than everyone else

Published on 8/28/2016
For additional information  Click Here

This might be why you can't handle drinking coffee
(Picture: Getty)

The moment you admit you have to stop drinking after one cup of coffee, because just one cup makes you wide awake and jittery, you’re bound to get dismissed as a coffee newbie unable to handle the strong stuff.

If you need a coffee on the hour, meanwhile, you’re called a caffeine addict, and people marvel at your steady pulse and lack of hand shaking. You’re tough. Badass. You’re a machine running on coffee.

And then there are the people that just need one cup to run on all day. They are mysterious, magical beings.

The difference in coffee-drinking abilities is weird, when you think about it. It’s the same drink – so why does it make some people feel so on edge and nauseous, while others can guzzle down pints of it?

This might be why you can't handle drinking coffee
(Picture: Getty)

Turns out there’s a scientific reason behind how much coffee we can handle, and how much we need to get through the day.

As part of a study published in the August 2016 issue of Scientific Reports, researchers analysed a group of around 1,200 people in Italy, and around 1,700 in the Netherlands.


They looked at these people’s DNA to identify a gene called PDSS2, which they suggest plays a major role in how people metabolise coffee.

Through analysing people’s DNA and the amount of caffeine they drank, the researchers discovered that the reason some people don’t need to drink as much coffee to feel more awake is that their bodies are breaking down caffeine differently – and it’s all down to their genes.

This might be why you can't handle drinking coffee
(Picture: Getty)

Participants with a stronger PDSS2 gene drank less coffee, because their bodies metabolised the caffeine at a more even pace, meaning it was spread throughout the body at a steady rate. This meant they didn’t need constant top-ups to feel more awake.

Those with weaker expressions of this gene metabolised caffeine too quickly, causing intense spikes and dips (meaning queasiness and jitters, followed by a massive dip in energy).

So whether you’re heavily reliant on regular cups of coffee or just need one cup to make it through the day, it’s not your fault: it’s your genes.

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