Functions of Water: 7 Health Benefits (2024)

1. Water Protects Your Tissues, Spinal Cord, and Joints

Water does more than just quench your thirst and regulate your body’s temperature; it keeps the tissues in your body moist, according to theMayo Clinic Health System. You know how it feels when your eyes, nose, or mouth gets dry? Keeping your body hydrated helps it retain optimum levels of moisture in these sensitive areas, as well as in the blood, bones, and brain, according to the U.S. Geological Survey. In addition, water helps protect your spinal cord, and it acts as a lubricant and cushion for your joints.

2. Water Helps Your Body Remove Waste

Adequate water intake enables your body to excrete waste through perspiration, urination, and defecation. Water helps your kidneys remove waste from your blood and keep the blood vessels that run to your kidneys clear, according to the National Kidney Foundation. Water is also important for helping prevent constipation, points out the University of Rochester Medical Center. However, asresearch notes, there is no evidence to prove that increasing your fluid intake will cure constipation, as many factors are involved.

RELATED:Are You Drinking Enough Water? These Are the Health Risks of Dehydration

3. Water Aids in Digestion

Water is important for healthy digestion. As the Mayo Clinic explains, water helps break down the food you eat, allowing its nutrients to be absorbed by your body. After you drink, both your small and large intestines absorb water, which moves into your bloodstream and is also used to break down nutrients. As your large intestine absorbs water, stool changes from liquid to solid, according to the National Institute for Diabetes and Digestive and Kidney Diseases. Water is also necessary to help you digest solublefiber, perMedlinePlus. With the help of water, this fiber turns to gel and slows digestion, contributing to a longer-lasting sense of fullness.

4. Water Prevents You From Becoming Dehydrated

Your body loses fluids when you engage in vigorous exercise, sweat in high heat, or come down with a fever, or contract an illness that causesvomiting or diarrhea, according to theCenters for Disease Control and Prevention. If you’re losing fluids for any of these reasons, it’s important to increase your fluid intake so that you can restore your body’s natural hydration level. Your doctor may also recommend that you drink more fluids to help treat other health conditions, like bladder infections and urinary tract stones. If you’re pregnant or nursing, you may want to consult with your physician about your fluid intake because your body will be using more fluids than usual, according to the Academy of Nutrition and Dietetics, especially if you’re breastfeeding.

RELATED: Water Fasting 101: What You Need to Know

5. Water Helps Your Brain Function Optimally

Ever feel foggy headed? Take a sip of water. Research shows that dehydration is a drag to memory, attention, and energy, per a small study. It’s no wonder, considering H2O makes up 75 percent of the brain, the authors point out. One reason for that foggy-headed feeling? “Adequate electrolyte balance is vital to keeping your body functioning optimally. Low electrolytes can cause issues including muscle weakness, fatigue, and confusion,” says Gabrielle Lyon, DO, a functional medicine physician in New York City.

6. Water Keeps Your Cardiovascular System Healthy

Water is a huge part of your blood. (For instance, plasma — the pale yellow liquid portion of your blood — is about 90 percent water, notesBritannica.) If you become dehydrated, your blood becomes more concentrated, which can lead to an imbalance of the electrolyte minerals it contains (sodium and potassium, according to Merck Manual), saysSusan Blum, MD, founder of the Blum Center for Health in Rye Brook, New York. These electrolytes are necessary for proper muscle and heart function.

“Dehydration can also lead to lower blood volume, and thus blood pressure, so you may feel light-headed or woozy standing up,” Dr. Blum says.

In fact, a 2023 study suggests that optimal hydration may actually slow the aging process in humans, partly due to these cardiovascular benefits, though researchers noted that more study is needed to validate the findings.

RELATED: Is It Dehydration or Something Else?

7. Water Can Help You Eat Healthier

It may be plain, but it’s powerful. In a study of more than 18,300 American adults, people who drank just 1 percent more water a day ate fewer calories and lesssaturated fat, sugar, sodium, and cholesterol, according to one study. Water may help fill you up, especially if you drink it before eating a meal, a notion that was backed up in a small study of 15 young, healthy participants.

How Much Water Do You Need?

The National Academy of Sciences recommends that men consume 3.7 liters (15.5 cups) and women get 2.7 liters (11.5 cups) of fluids per day, which can come from water, beverages in general, and food (such as fruits and vegetables). You can also try the Urine Color Test, courtesy of the U.S. Army Public Health Command, to evaluate how you’re doing on drinking up. After going to the bathroom, look at the color of your urine. If it is very pale yellow to light yellow, you’re well hydrated. Darker yellow is a sign of dehydration. Brown or cola-colored urine is a medical emergency, and you should seek medical attention.

Additional reporting by Jen Laskey.

Functions of Water: 7 Health Benefits (2024)

FAQs

Functions of Water: 7 Health Benefits? ›

Uses of water in the human body can be loosely categorized into four basic functions: transportation vehicle, medium for chemical reactions, lubricant/shock absorber, and temperature regulator. Water has been termed the “universal solvent” because more substances dissolve in it than any other fluid.

What are the functions of water answer? ›

Uses of water in the human body can be loosely categorized into four basic functions: transportation vehicle, medium for chemical reactions, lubricant/shock absorber, and temperature regulator. Water has been termed the “universal solvent” because more substances dissolve in it than any other fluid.

What are the functional benefits of water? ›

What are functional benefits? Home Dictionary Functional benefits. They are benefits that relate to the specific performance of the product or service. They are aimed at satisfying a generic need amongst users, such that their exploitation offers few possibilities for differentiation within a business branch.

What is the importance of water 7? ›

Water aids in digestion and absorption of food, as well as in the removal of wastes from your body. Water also helps you maintain a healthy weight. Everyday your body loses 2-3 quarts (8-12 cups) of water through sweat, urination, and evaporation (through your skin and lungs).

What is the 7 water diet? ›

“A seven-day water fast entails giving up all meals and drinking solely water throughout that time,” said Dr Babina N.M, chief medical officer, Jindal Naturecure Institute.

What is the healthiest water to drink? ›

No beating around the bush here. Without a doubt, spring water is the winner. It is considered the best water to drink, providing vital nutrients as it moves through the body. This is, of course, spring water that is bottled at the source and proven to be actual living spring water.

What happens when you start drinking enough water? ›

Water aids the digestive system, helps prevent constipation, flushes toxins from the body, promotes good kidney function, keeps your joints and muscles lubricated, supports healthier and younger-looking skin, and helps regulate body temperature.

Why should you wait 30 minutes to drink after eating? ›

Remember not to drink too soon before or after a meal as the water will dilute the digestive juices. Drink water an hour after the meal to allow the body to absorb the nutrients.

How to drink water correctly in a day? ›

To prevent dehydration and make sure your body has the fluids it needs, make water your beverage of choice. It's a good idea to drink a glass of water: With each meal and between meals. Before, during and after exercise.

How long does it take to see the benefits of drinking water? ›

While it may take weeks or months to notice a substantial difference from certain wellness changes — say, lifting weights and gaining muscle, or eating more healthy fats and scoring softer skin — drinking water can make an impact in a matter of minutes.

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