1) The human body is made up of 55 to 75 percent water, which is the basis of blood, digestive juices, urine and perspiration;
2) Water is continuously lost every second from the lungs, skin, urine and feces. The amount of water we need each day depends upon the body metabolism, the weather, the food we eat and physical activity;
3) Men have more water in their bodies than women. Adults lose about 2.5-3 liters of water per day. Hot weather, exercise, and air travel increase loss of water;
4) Food provides one third of water we need and the rest needs provided by drinks including drinking water;
5) Water in the body helps maintain the health and integrity of cells; keep the blood flow freely through blood vessels; eliminate the by-products of the body’s metabolism, excess electrolytes and urea; regulate body temperature; keep mucous membranes moist; lubricate and cushion joints; reduce risk of cystitis; help digestion and prevent constipation; improve skin texture and appearance; and mediate transportation of nutrients and oxygen to cells;
6) Loss of too water causes dehydration which results in symptoms including increased headaches, lethargy, mood changes and slow responses, dry nasal passages, dry or cracked lips, dark-colored urine, weakness, tiredness, confusion and hallucinations;
7) Dehydration can be caused by increased sweating, not drinking enough water, increased urination, diarrhea or vomiting and recovering from burns;
8) More water is needed in people who are eating a high protein diet or a high fiber diet; children; patients having diarrhea or vomiting; and those who are physically active or exposed to warm or hot weather;
9) Drinking too much water (many liters a day) may cause a condition known as water intoxication or hyponatremia. This happens when sodium in the blood drops to a dangerously low level. The condition causes headaches, blurred vision, cramps, swelling of the brain, coma and possibly death;
10) It is generally recommended that 6 to 8 glasses of a variety of fluids can be consumed each day. Some people may need more water if they are physically active, children, people in hot or humid environments, or breastfeeding.
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