Most young children drink caffeine. They drink lots of it, and many start as young as 5 years old.
A new study finds that three-quarters of young children consume caffeine, typically in the form of soda.
Scientists don't yet know what the health effects of caffeine are on kids, or how much is too much.
Caffeine doesn't seem to make bed-wetting worse, but it probably interferes with sleep.
Three-quarters of young kids consume caffeine, found a new study. Some drink up to three cans of soda a day, and many start as early as age 5.
The study was originally designed to look at the link between caffeine consumption and bed-wetting -- and, to the researchers' surprise, results showed no such connection. But sleep declined as caffeine use went up.
Just by looking at caffeine use in kids in the first place, the study helps by drawing new attention to the widespread use of a stimulant that has unknown health consequences on young bodies.
"Caffeine is not some boogie man, but at some point for all of us, too much caffeine is a problem," said William Warzak, a psychologist in the department of pediatrics at the University of Nebraska Medical Center in Omaha.