Results are out from a 17-year, almost-50-thousand person study on caffeine consumption. Researchers say that some coffee guzzlers may be genetically predisposed to lining up at Tims several times a day.
I try to limit my coffee intake to 2 or 3 cups max and never after noon. But if you’re finding you need a regular hit throughout the day, this study shows it may be because you share a genetic trait with the highest caffeine consumers in the study. These genes speed up the rate that caffeine is metabolized in the body, requiring you to drink more to get the effect.
I’ve often joked that Tim Hortons put some sort of addictive additive in its coffee to keep us coming back but maybe it’s just in your genes.