Water also plays a crucial role in disease prevention. In a study conducted at the Center for Human Nutrition at the University of Sheffield, England, researchers concluded that women who stay adequately hydrated reduce their risk of breast cancer by 79 percent. Another study, done at the Fred Hutchinson Cancer Research Center in Seattle, found that women who drink more than five glasses of water a day have a 45 percent reduced risk of colon cancer compared with women who drink two or fewer glasses of water a day.
Many doctors believe that proper hydration can help prevent chronic joint diseases, such as rheumatoid arthritis, because water reduces inflammation and promotes cartilage health.
Adequate water consumption can also slow the signs of aging and improve conditions such as constipation, diabetes, hypoglycemia, obesity, arthritis, kidney stones, dry skin, wrinkles, cataracts, and glaucoma.