Drinking untreated water

1. Drinking untreated water is associated with cognitive impairment in humans.

   “living in rural areas, drinking untreated water, using coal, not opening indoor windows during winter, inadequate kitchen ventilation, a lack of air purification devices, and reliance on kerosene are indirectly associated with cognitive impairment.”

   Humans

   Bayesian network analysis of cognitive impairment in empty-nest older adults: the role of living environment

   Frontiers in public health·17 Nov 2025

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