Coffee Genes

How much coffee do you drink every day? One cup in the morning? Or do you gulp it all day?

Scientists have long known that your DNA influences how much java you consume. Now a huge study has identified some genes that may play a role.

Their apparent effect is quite small. But variations in such genes may modify coffee’s effect on a person’s health, and so genetic research may help scientists explore that, said Marilyn Cornelis of the Harvard School of Public Health. She led the research.

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The project analyzed the results of about two dozen previous studies with a combined total of more than 120,000 participants. Those participants had described how much coffee they drink a day, and allowed their DNA to be scanned. The new work looked for minute differences in their DNA that were associated with drinking more or less coffee.

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Categories: Biology, Genetics, Research, Science

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