Water Works
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Water Works

Do you need 8 glasses a day? Bottled or tap? Do you need water or a sports drink after a workout? See how much you know about H20.

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Water Works
Water Works
Question 1 of 20 Correct

How many cups of water should you drink every day?

Correct! Sorry, that’s incorrect.

The correct answer is: Although many doctors and nutritionists recommend eight glasses of water a day, there's actually no magic to this number. The right amount of water consumption varies according to your activity level and size. A good guideline: Drink enough water so that your urine is clear.

Water Works
Question 2 of 20 Correct

True or false: You know you need to drink water -- but eating foods that contain water counts, too.

Correct! Sorry, that’s incorrect.

The correct answer is: This is true. Produce can provide roughly 20 percent of your water needs. Cucumbers, celery, zucchini, tomatoes, watermelon, strawberries, spinach, grapefruit and broccoli are all more than 90 percent water.

Water Works
Question 3 of 20 Correct

Who has more water in their body?

Correct! Sorry, that’s incorrect.

The correct answer is: Different people have different percentages of their bodies made up of water. Babies have the most, being made up of about 78 percent water at birth.

Water Works
Question 4 of 20 Correct

Which has more water in it?

Correct! Sorry, that’s incorrect.

The correct answer is: Fat tissue has less water in it than lean tissue, which is why obese people tend to be made up of less water than thin people.

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Question 5 of 20 Correct

How much body weight in water do you have to lose to be dehydrated?

Correct! Sorry, that’s incorrect.

The correct answer is: Dehydration sets in when you have lost 2 percent of your body weight. The early signs of dehydration are subtle and may be easy to miss, so watch for dark yellow urine, dry mouth, headaches, weakness, irritability and cramping.

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Question 6 of 20 Correct

A 2008 study by an environmental group found bacteria, caffeine, acetaminophen, fertilizer and what other contaminant in 10 bottled water brands?

Correct! Sorry, that’s incorrect.

The correct answer is: The study of 10 bottled water brands found 38 chemicals, including strontium.

Water Works
Question 7 of 20 Correct

What is the most common source of lead in drinking water?

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The correct answer is: Drinking water is rarely contaminated by natural sources of lead. Most lead leaches into drinking water from plumbing materials like lead pipes, fixtures and solder. Homes built before 1986 are more likely to have lead in the plumbing, but even new homes can have their water supply polluted by lead.

Water Works
Question 8 of 20 Correct

How many gallons of bottled water do Americans drink in a year?

Correct! Sorry, that’s incorrect.

The correct answer is: Americans drank 8.7 billion gallons of bottled water in 2008. That's about 30 gallons a person. In 1976, the average American drank a gallon and a half of bottled water.

Water Works
Question 9 of 20 Correct

True or false: Drinking water during exercise causes cramps.

Correct! Sorry, that’s incorrect.

The correct answer is: This is false. You shouldn't get cramps during exercise unless you ate or drank too much beforehand. To be safe, drink about 16 to 24 ounces of water two hours before activity, and take sips during your workout.

Water Works
Question 10 of 20 Correct

Besides a full bladder, drinking too much water can cause what harmful problem?

Correct! Sorry, that’s incorrect.

The correct answer is: Water intoxication, or sickness from drinking too much water, happens when you exceed your capacity to get rid of water.

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Question 11 of 20 Correct

How much water can your body process and excrete in an hour?

Correct! Sorry, that’s incorrect.

The correct answer is: Your body can excrete about 1,000 milliliters of water per hour — or about 4 glasses. If you drink more than this, you can dilute your body salts, leading to water intoxication.

Water Works
Question 12 of 20 Correct

What is hypernatremia?

Correct! Sorry, that’s incorrect.

The correct answer is: Hypernatremia is a deficit of water in relation to the body's salt stores, the opposite of water toxicity. The condition occurs when the thirst function fails or there is a limited access to water. Infants, the elderly, hospitalized patients and people with an altered mental status are at highest risk for the condition as they are unable to ask for or obtain water.

Water Works
Question 13 of 20 Correct

Which statement is true:

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The correct answer is: Drinking more water won't help your body flush toxins or improve your skin -- unless you're getting too little to begin with. In fact, the kidneys don't seem to need extra water to get rid of the toxins your body produces.

Water Works
Question 14 of 20 Correct

True or false: Drinking water can help you lose weight.

Correct! Sorry, that’s incorrect.

The correct answer is: This is true. Research shows that drinking water may help you peel off pounds. In fact, people who drink an average of 6½ cups of water each day consume 200 fewer calories a day, according to a study from the University of North Carolina at Chapel Hill.

Water Works
Question 15 of 20 Correct

Diuretics are often prescribed for which conditions?

Correct! Sorry, that’s incorrect.

The correct answer is: Diuretics are often prescribed to lower blood pressure. Diuretics cause your body to eliminate salt and water, which in turn lowers blood pressure.

Water Works
Question 16 of 20 Correct

True or false: You know you're beginning to get dehydrated when you feel thirsty.

Correct! Sorry, that’s incorrect.

The correct answer is: This is false. Thirst isn't always a good indicator of your body's fluid status. If you wait to feel thirsty, chances are you are already dehydrated.

Water Works
Question 17 of 20 Correct

Which of these are signs that your water may not be safe?

Correct! Sorry, that’s incorrect.

The correct answer is: All of the above are signs that your water may be contaminated. Other possible clues: if your home has lead pipes, if you live near crops or livestock, if your home has radon gas or if you or your neighbors have recurring illnesses.

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Question 18 of 20 Correct

Which of the following is a water-borne illness?

Correct! Sorry, that’s incorrect.

The correct answer is: Cholera is an infection of the small intestine caused by the bacterium Vibrio cholerae. It's typically contracted from drinking infected food or water.

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Question 19 of 20 Correct

When was fluoride added to U.S. water supplies?

Correct! Sorry, that’s incorrect.

The correct answer is: Fluoride was originally added to U.S. water supplies in the 1940s. It was intended to help prevent tooth decay in young children.

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Question 20 of 20 Correct

True or false: Water can keep you hydrated during exercise just as well as sports drinks.

Correct! Sorry, that’s incorrect.

The correct answer is: This is false, especially if you're doing a long or hard workout. Sports drinks contain water, carbohydrates, and electrolyte minerals, usually sodium and potassium which are lost in sweat. If you are working out hard, for an hour or longer, a sports drink might help you continue longer or harder than you could with just water.

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You got out of 20 correct. You're a health wiz!

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