Salt in coastal Bangladesh's drinking water may be quietly raising women's blood pressure, and a 9-year follow-up points to a threshold near 1000 mg/L

When we turn on the kitchen tap for a glass of water or a morning cup of tea, we usually picture something simple and safe. For decades, environmental stories have often portrayed rural water projects as standard health victories that protect families from waterborne illnesses. A common belief is that building deep tube wells and local water pumps solves rural hydration needs, driving water scarcity away and leaving a safe landscape for local communities.

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