Gene That Can Cure Your Coffee Addiction

                Researchers have identified a gene that appears to curb caffeine consumption, a finding which may explain why some people tend to drink fewer cups of coffee. The study by researchers found that people with a DNA variation in a gene called PDSS2 tend to drink fewer cups of coffee. The findings suggest that the gene reduces the ability of cells to breakdown caffeine, causing it to stay in the body for longer. This means that a person would not need to consume as much coffee to get the same caffeine hit. The findings add to previous studies that have identified genes linked to coffee habits and shed new light on the biological mechanisms of caffeine metabolism. Researchers looked at genetic information from 370 people living in a village in south Italy and 843 people from six villages in north-east Italy. Each of the participants was asked to complete a survey that included a question about how many cups of coffee they drank each day. Researchers found that people with the DNA variation in coffee than people without the variation. Researchers replicated the study in a group of 1,721 people from the Netherlands. The results were similar but the effect of the gene on the number of cups of coffee consumed was slightly lower.