A new study has found that young people who use pre-workout supplements are more than twice as likely to sleep five hours or less a night.
That finding recasts a familiar gym aid as a possible driver of severe sleep loss during years when rest still shapes learning, mood, and recovery.
What the numbers show
Within a Canadian sample of 912 people ages 16 through 30, the sharpest signal appeared among those sleeping five hours or less.
Tracing that pattern in the survey, Kyle T. Ganson at the University of Toronto (U of T) documented a link between recent pre-workout use and the shortest nights in the group.
The association did not spread evenly across every sleep category, which made the most extreme sleep loss stand out as the central concern.
That narrow but striking pattern leaves the next question hanging in…