Humans should drink water before feeling thirsty to maintain hydration
the verdict
SUPPORTED
the evidence backs this
confidence 75/100
Health guidelines and research support drinking water before feeling thirsty, particularly during physical activity or heat exposure, because thirst indicates fluid deficits have already begun.
Evidence for · 2
cdc.gov: Heat Stress: Hydration
cited by 0
CDC guidelines state to drink before feeling thirsty because thirst means you are already behind.
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More for · 1
pubmed.ncbi.nlm.nih.gov: Drinking Strategies: Planned Drinking Versus Drinking to Thirst - PubMed
cited by 0
Discusses planned drinking versus drinking to thirst, noting planned drinking is optimal in high sweat situations.