@dharte47
64 oz fluid intake is a general guidance. If you halve your weight, you will come closer to your actual daily need. Another thing to keep in mind is that all fluids count toward your daily intake, not just water. Even caffeinated coffee and teas count in moderation, as do juices, soups and other liquids in meals. Of course it's important to maintain a healthy diet too and watch sugar and salt intake. Keep in mind though that some meds may require more water because of the way they work and it's important to stay hydrated at all times, especially when outside in summer heat.