The Claim
In male university rowers, conditions containing caffeine are associated with poorer subjective sleep quality and higher daytime sleepiness the following day compared to conditions with paraxanthine alone.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
Male university rowers who consume caffeine report worse sleep quality and more daytime sleepiness the next day than when they consume paraxanthine alone.
See the scientific wording
In male university rowers, conditions containing caffeine are associated with poorer subjective sleep quality and higher daytime sleepiness the following day compared to paraxanthine alone, suggesting paraxanthine may have a more favorable impact on post-exercise recovery and sleep.
Paraxanthine leaves the body faster than caffeine, so it stops blocking sleep-promoting signals in the brain earlier at night. This allows the brain to naturally build up sleep pressure and release melatonin, leading to deeper, more restful sleep and less daytime tiredness the next day.
What the research says
1 studyWhen rowers took caffeine before bed, they slept worse and felt sleepier the next day than when they took paraxanthine. This suggests paraxanthine is gentler on sleep after evening workouts.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.