People who drink coffee take more steps, but less sleep
Coffee is one of the most consumed beverages around the world, but there are different theories regarding its positive and negative effects.
New findings from a small study published Thursday in The New England Journal of Medicine suggest the pros and cons: Drinking at least one cup of coffee a day may make you move more, but sleep less a little.
The authors from the University of California recruited 100 healthy adults who were an average of 39 years old and from the San Francisco area. Each participant was assigned to drink as much coffee as they wanted for two days, then abstain for two days, repeating that cycle over a two-week period.
On coffee-drinking days, participants took an average of 1,058 more steps than on abstinent days, the authors found. But on those days, sleep took a hit, with participants getting 36 minutes less shut-eye. The more coffee they drank, the more physical activity and less sleep they had.