Researchers are interested in understanding the biology of why some people are more likely to overconsume substances. Some substances are difficult to study—people might not admit to illegal substance abuse or to how much alcohol they drink. But Americans are more likely to accurately recall and share how much coffee they drink—which is related to how much caffeine they consume. And so a team of researchers paired up with the company 23 and Me to try to understand genetic differences among a large set of people, to try to tease out any genetic similarities that could be correlated with coffee consumption. Sandra Sanchez-Roige is an associate professor in the department of psychiatry at the University of California San Diego, and she’s one of the study’s authors. Abraham Palmer is a professor and vice chair of basic research in the department of psychiatry at UC San Diego, and he’s another of the study’s authors. 

Read their full study here: https://www.nature.com/articles/s41386-024-01870-x

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