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Writer's pictureLiz Mehigan

How much water should we drink each day?

Staying hydrated is crucial for maintaining optimal health, but how much water should you actually drink each day? The answer can vary depending on a number of factors, including age, gender, activity level, and climate. However, a commonly cited guideline is the “8x8” rule: eight 8-ounce glasses of water a day, which equals about 2 litres, or half a gallon. This is a simple goal that is easy to remember.


The National Academies of Sciences, Engineering, and Medicine suggests a higher intake: about 3.7 litres (or 13 cups) for men and 2.7 litres (or 9 cups) for women, which includes fluids from all beverages and foods. Certain conditions like pregnancy, breastfeeding, or illness may require an increased intake.


Why Is It Important to Stay Hydrated?

Hydration is vital because water is involved in almost every bodily function. Here are some key reasons why staying hydrated is essential:


1. Regulates Body Temperature

Water helps regulate your body temperature through sweating and respiration. It’s especially crucial during exercise and in hot climates.


2. Maintains Skin Health

Proper hydration keeps your skin healthy, resilient, and less prone to dryness and wrinkles.


3. Supports Digestion

Water aids in digestion by helping break down food so that your body can absorb the nutrients. It also prevents constipation by softening stools.


4. Boosts Physical Performance

Dehydration can significantly impair physical performance. It affects your strength, power, and endurance, making adequate hydration critical for athletes and active individuals.


5. Improves Cognitive Function

Your brain is strongly influenced by hydration status. Even mild dehydration can impair various aspects of brain function, including concentration, alertness, and short-term memory.


6. Aids in Detoxification

Water helps flush out toxins and waste products through urination, perspiration, and bowel movements.


7. Supports Kidney Function

Adequate water intake helps your kidneys function properly and reduces the risk of kidney stones and urinary tract infections.



How to Tell if You Are Drinking Enough Water


Determining whether you're getting enough water can be straightforward if you know what signs to look for. Here are some indicators that can help you gauge your hydration levels:


1. Check Your Urine Color

A simple way to monitor hydration is by the colour of your urine. Pale yellow or clear urine typically indicates proper hydration, while dark yellow or amber-coloured urine is a sign that you need to drink more fluids.


2. Monitor Thirst

Thirst is a clear indicator of dehydration. If you feel thirsty, your body is signaling that it needs more water.


3. Look for Physical Symptoms

Dry mouth, dry skin, headaches, dizziness, and fatigue are common signs of dehydration. Pay attention to these symptoms and increase your water intake accordingly.


4. Track Your Water Intake

Keeping track of how much water you drink each day can help ensure you’re meeting your hydration needs. There are many apps and tools available that can make tracking easier.


5. Consider Your Lifestyle and Environment

If you’re active or live in a hot or dry climate, you’ll need more water to compensate for the extra fluid loss through sweat.


6. Evaluate Your Hunger

Sometimes, what feels like hunger can actually be thirst. Drinking a glass of water before eating can help you determine whether you’re actually hungry or just need to hydrate.


7. Check Your Skin Elasticity

Gently pinch the skin on the back of your hand. If it doesn’t return to its normal position quickly, it could be a sign of dehydration.



In conclusion, staying adequately hydrated is essential for overall health and well-being. By understanding your body’s signals and maintaining a consistent water intake, you can ensure that you stay properly hydrated and support all of your bodily functions. Remember, individual hydration needs can vary, so it’s important to listen to your body and adjust your fluid intake as necessary.


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