Emotional Reactions to Dehydration

Those of us who are prescribed with diuretics for blood pressure control and other reasons are normally very aware of what happens when we get dehydrated. But for those not taking diuretics, the results are less familiar. Now it is official.

Cranky? Even mild dehydration can alter our moods

Even mild dehydration can alter a person’s mood, energy level, and ability to think clearly, according to two studies recently conducted at the University of Connecticut’s Human Performance Laboratory.

The tests showed that it didn’t matter if a person had just walked for 40 minutes on a treadmill or was sitting at rest – the adverse effects from mild dehydration were the same. Mild dehydration is defined as an approximately 1.5 percent loss in normal water volume in the body.

“Our thirst sensation doesn’t really appear until we are 1 [percent] or 2 percent dehydrated. By then dehydration is already setting in and starting to impact how our mind and body perform,” says Armstrong, an international expert on hydration who has conducted research in the field for more than 20 years. “Dehydration affects all people, and staying properly hydrated is just as important for those who work all day at a computer as it is for marathon runners, who can lose up to 8 percent of their body weight as water when they compete.”

Much more interesting details at ScienceBlog.

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