Dehydration happens when your body loses more fluid than it gains. You lose fluids when you sweat, vomit, or have diarrhea. Older adults retain fewer fluids in general, so dehydration can be common. It’s easy to avoid dehydration with the proper steps, but you should also know what dehydration consists of. AFC Urgent Care Waltham can provide you with the treatment and resources you need to maintain hydration. In severe cases, it’s best ...