Drink more water to prevent illness following exposures.
If you are around sick people in the hospital or at work and school, drink a little more water than usual to wash away germs and viruses that your body may have picked up from exposure to these people.
A well-hydrated body helps to move along any invaders before they settle down and multiply in your system. Drinking water each day before of after going out in public can help to prevent certain types of viruses, or lessen their severity.