FROM: The Townsend Letter for Doctors and Patients, #187, 188. Feb/Mar 1999
Drinking Water Decreases Heart Disease and Stroke Risk
A study of more than 34,000 Seventh Day Adventists found that drinking at least five glasses of water per day was associated with an approximately 50% decreased rate of heart attack and stroke compared with those who drank two glasses of water per day. The authors believed that the water helped decrease blood viscosity and hematocrit which have been previously shown to be risk factors for heart disease and stroke. Drinking fluids other than water and total fluid intake were NOT related to decreased risk of heart disease. The speculation is that many of these other fluids are hyperosmolar. They draw water away from the bloodstream to become balanced causing a temporary increase in blood viscosity.