There is no scientific evidence that states we need eight 8 oz. glasses (64 oz.) of fluid every day. Remember, what goes in must come out.
Many women, unless you exercise heavily or work in hot conditions can drink less than 64 oz. per day.
In 2004, the Institutes of Medicine reported that most people meet their daily hydration needs by letting their thirst be their guide. You must also remember that we get additional fluids from our diets in the form of soups, stews, fruits, etc. It has been shown that we get as much as 20 percent of our daily fluids from our diet.
Try spreading out fluids during the day instead of drinking large amounts at a one time. This is especially important before leaving the house.
If you get up to void more than two times per night, you should limit your drinking after dinner.