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Water intoxication, also known as water poisoning, hyperhydration, overhydration, or water toxemia, is a potentially fatal disturbance in brain functions that can result when the normal balance of electrolytes in the body is pushed outside safe limits by excessive water intake.
In soft waters with low ionic content, invertebrates and fishes may develop adverse effects from fluoride concentration as low as 0.5 mg/L. Negative effects are less in hard waters and seawaters, as the bioavailability of fluoride ions is reduced with increasing water hardness [33] Seawater contains fluoride at a concentration of 1.3 mg/L. [34]
Experts agree that old water contains more bacteria and could potentially make you sick, though it does depend on what type of bacteria is present and the health status of the person drinking it.
Carbonated drinks known as sparkling, fizzy, seltzer and soda waters are thought to impact the waistline. A new study weighs in, but don’t expect too much.
Drinking water that is supplied through a tap . Drinking water or potable water is water that is safe for ingestion, either when drunk directly in liquid form or consumed indirectly through food preparation. It is often (but not always) supplied through taps, in which case it is also called tap water.
The effect of seawater intake on rats confirmed the negative effects of drinking seawater when dehydrated. [10] In contrast to humans, pelagic birds and other sea animals can – and must – drink sea water without ill effects, having evolved for life at sea over the course of aeons.) [ citation needed ]
Here's what immunologists say.
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