When you’re exercising or spending time in hot weather, you lose fluid through sweat. If those losses aren’t replaced, the risk of dehydration increases.
That’s why hydration becomes particularly important during:
- Hot weather
- Exercise
- Long periods outdoors
- Fever
- Vomiting or diarrhea
- Activities that cause heavy sweating
How Much Water Do You Actually Need?
There isn’t one perfect amount of water that applies to every person.
Fluid needs depend on factors such as body size, activity level, climate, diet, pregnancy, illness, and how much you sweat.
Water also comes from foods
