Children who consume more caffeine may sleep for shorter periods and show small differences in brain development, according to new research involving thousands of young people.
The study examined children aged 9 to 11 and found a link between reported caffeine consumption and sleep duration, alongside differences in measurements of the brain’s outer layer, known as the cerebral cortex. This region plays a role in attention, decision-making, emotional processing and other cognitive functions.
Soft Drinks May Be a Source of Caffeine
Caffeine is commonly associated with coffee and tea, but children can also consume it through soft drinks and other beverages. Because these drinks may be part of everyday routines, parents may not always consider how much caffeine a child is consuming.
The researchers used information about children’s usual caffeinated-drink consumption and their sleep, along with brain scans to examine structural measurements.
Why Sleep Matters for Growing Children
Sleep supports learning, memory, emotional regulation and healthy development. Regularly getting too little sleep can make it harder for children to concentrate, manage emotions and stay alert during the day.
Caffeine is a stimulant that can make it more difficult to fall asleep or get enough rest, particularly when consumed later in the day.
What Parents Should Know
The findings show an association, not proof that caffeine directly causes differences in brain development. More research is needed to understand the long-term implications and how factors such as sleep habits and overall lifestyle contribute.
Parents can support healthy routines by encouraging consistent bedtimes, protecting time for adequate sleep and choosing water or other caffeine-free drinks for everyday hydration. If a child regularly struggles to sleep, discussing the problem with a healthcare professional may help identify possible causes.
The research highlights the importance of paying attention to children’s caffeine intake as well as their sleep habits during key years of development.
