Articles
Water: How much should you drink every day?
Health benefits of water
Factors that influence water needs
Beyond the tap: Other sources of water
Staying safely hydrated
Content
What are the health benefits of water?
How much water do you need?
What about the advice to drink 8 glasses a day?
Is water the only option for staying hydrated?
How do I know if I'm drinking enough?
Should I worry about drinking too much water
What are the health benefits of water?
Water is your body's principal chemical component and makes up about 50% to 70% of your body weight. Your body depends on water to survive.
Every cell, tissue and organ in your body needs water to work properly. For example, water:
- Gets rid of wastes through urination, perspiration and bowel movements
- Keeps your temperature normal
- Lubricates and cushions joints
- Protects sensitive tissues
Lack of water can lead to dehydration — a condition that occurs when you don't have enough water in your body to carry out normal functions. Even mild dehydration can drain your energy and make you tired.
