| | Conditions & Treatments | Alzheimer's Disease Does your body use more water when you are sick? Yes, when a person is sick, especially with fevers or other conditions that cause increased fluid loss, they tend to use more water than usual. Alzheimer's Disease - Related Articles How come you can feel the sun when it is so far away? Is the kidney responsible for water loss from body on a hot day? How Take Temperature Can Morning sickness caused by anything thing else? How to Overcome Seasickness What is a body temperature when it sick? How to Battle Minor Altitude Sickness