There are a number of obvious factors that affect the amount of coffee you drink. How much did you sleep last night, for example, or how many times did your little cat wake up? Near the nearest Starbucks in your office. The number of urgent and acutely stressful deadlines that jam your diary. But before you are punished for total dependence on caffeine, here is something else that plays the main role: your genetics. A new study has shown that the amount of coffee you drink relates to your genetically-sensitive sensitivity to its bitter taste – and strangely, the more sensitive you are, the more you drink it. Is not that a useful fact available to you next time when your colleague looks at your fifth cup of the day?
Researchers at Northwestern University in the United States and the KIMR Berghofer Medical Research Institute in Australia studied the relationship between our perceived bitterness and how much we drink. Coagulation, researchers said, should try to keep us from drinking coffee and other bitter substances – after all, we have developed a taste that prevents us from consuming harmful things. However, a quick look at the morning line at the nearest coffee shop is enough to show that this is far from the case.
Study, published in Scientific reports, have examined the relationship between sensitivity to caffeine outburst and coffee consumption in over 400,000 people in the UK. The researchers looked for a link between the presence of genetic variants related to the sensitivity to caffeine and the amount of coffee the participants themselves reported drinking.
The results? People who are more sensitive to the bitter taste of coffee actually drank more than that. "Given that people generally avoid bitter tastes, they find interpreters as possible learning behaviors," said co-author Dr Marilin Cornelis of Northwestern guardian. "If we can understand good caffeine, we associate this with the psychostimulant properties of caffeine and that's why we are looking for more coffee." Simply put, if you are more sensitive to coffee, you will probably connect it more with your precious energetic effects – and drink much more as a result.
"Powerful caffeine testers" will be much more likely to become big coffee consumers, explained Jue Sheng Ong, the first author of the KIMR Berghofer Institute for Medical Research. "While the effect of perception on daily coffee intake could be relatively small – just an increase of 0.15 glasses a day – from a normal caffeine to a powerful caffeine button, it really makes you 20% more likely to become a heavy drunk – more than four cups a day "he said guardian.
The taste, the researchers suggest, is not only a coincidence, nor an environment around you; Instead, it influences your genetics. Have you ever wondered why you need a steady supply of caffeine to do it during the day, while Katie at the table next to you seems to be okay with her fruit water? The answer, it turns out, can be in your genes.