How Much Water do we Need to Drink?

Our bodies are estimated to be about 60 to 70% water. Blood is mostly water, and our muscles, lungs, and brain all contain a lot of water. We need to drink water because water is needed to regulate body temperature and to provide the means for nutrients to travel to all our organs. Water also transports oxygen to our cells, removes waste, and protects our joints and organs.

A good estimate is to take your body weight in pounds and divide that number in half. That gives you the number of ounces of water per day that you need to drink. For example, if you weigh 160 pounds, you should drink at least 80 ounces of water per day. If you exercise you should drink another 8 ounce glass of water for every 20 minutes you are active. If you drink coffee or alcohol, you should drink at least an equal amount of water. When you are traveling on an airplane, it is good to drink 8 ounces of water for every hour you are on board the plane. If you live in an arid climate, you should add another 2 servings per day. As you can see, your daily need for water can add up to quite a lot.

The best source of water is plain, pure drinking water. Sodas have a lot of sugar in them and aren't a good source, so if you drink them, they don't count towards your daily amount. Herbal teas that aren't diuretic are fine. Sports drinks contain electrolytes and may be beneficial, just look out for added sugar and calories that you don't need.