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Drivers Beware: Hot Drinks Cause Unexpected Energy Slumps
10 Dec, 2025
Summary
- Nearly one in five drivers experienced a caffeine crash while driving.
- Popular festive drinks can contain almost half the daily recommended caffeine.
- Car insurance experts warn of the signs of a dangerous caffeine crash.

As colder weather sets in, drivers are reminded that their favorite hot beverages might pose a hidden risk. A recent study highlights that almost one in five drivers has suffered a caffeine crash while driving, a sudden dip in energy and concentration. This phenomenon is particularly concerning as popular seasonal drinks, such as pumpkin spice lattes, can pack a significant caffeine punch, often nearing half of the daily recommended limit in a single serving.
Car insurance experts are urging drivers to recognize the tell-tale signs of a caffeine crash. These can include extreme tiredness, difficulty focusing, irritability, and headaches, which can be dangerous when operating a vehicle. Since caffeine is not a regulated substance, there are no legal limits for drivers, making personal awareness of consumption crucial, especially before embarking on long journeys.
To ensure safety on the road, especially during congested periods, experts reiterate the importance of regular breaks every two hours, as recommended by The Highway Code. Avoiding late-night drives between midnight and 6 am, when natural alertness is lowest, and planning rest stops are also vital. Staying hydrated remains a key strategy for maintaining alertness and well-being while driving.