www.alkalinebuzz.com 1998 survey by Cornell Medical Center, NY. 75% of all Americans have symptoms of chronic dehydration. In 37% of Americans, the thirst mechanism is weak and often mistaken as hunger. Even mild dehydration will slow down one’s metabolism as much as 3%. Dehydration is the #1 trigger of daytime fatigue. A mere 2% drop in hydration can trigger fuzzy short-term memory, trouble with basic math, and difficulty focusing.