Is the “Eight Glasses a Day” theory about water intake right for everyone? The amount of water we need to drink each day can vary based on several factors:
-- Increased activity
-- Hot or humid weather
-- Dry indoor air and high altitudes
-- Having an illness, especially one accompanied by fever, vomiting or diarrhea
While drinking water is often the best way to replace lost fluids, other liquids including herbal tea, soup, fruit juice (with no sugar added), and sports drinks also are effective. Caffeinated or alcohol-containing drinks don’t help keep you hydrated and actually increase the rate at which your body gets rid of fluids, so avoid them on very hot days and stick to good ol’ fashioned water.You can also add a squirt of lemon or lime to your water if plain water gets too boring.