“Drink more water!” is advice we hear almost everywhere. Whether it is about improving our skin, staying healthy, or avoiding dehydration, water is often presented as one of the simplest ways to take care of our bodies. But have you ever stopped to ask how much water you actually need to drink in a day?
The answer is not as straightforward as drinking eight glasses daily. Although this is a common recommendation, the amount of water a person needs depends on several factors, including age, physical activity, weather, and overall health.
According to the U.S. National Academies of Sciences, Engineering, and Medicine, adequate daily water intake for most healthy adults is approximately 3.7 litres for men and 2.7 litres for women. However, these amounts include water from all beverages and food, not just plain drinking water.
This means you do not necessarily have to drink several litres of water on top of everything else you consume. Foods such as fruits, vegetables, and soups also contribute to your daily water intake.
So, how many glasses should you drink?
If you prefer measuring your water by the glass, eight glasses of 250 millilitres give you two litres. This can be a useful starting point, but it is not a fixed requirement for everyone. Some people may need more, particularly when they spend time outdoors, exercise, or work in hot conditions.
In a country like Rwanda, where temperatures can rise and many people spend time moving between home, work, school, and other daily activities, staying hydrated is especially important. When you sweat more than usual, your body loses water and needs additional fluids to replace it.
How do you know if you are drinking enough?
One simple way to monitor your hydration is to pay attention to your urine. Pale yellow urine generally indicates that you are well hydrated, while darker yellow urine may suggest that you need more fluids. However, certain medications, supplements, and health conditions can affect urine colour.
Feeling thirsty is another signal that your body needs water. Other signs of dehydration may include a dry mouth, headaches, dizziness, and passing urine less frequently than usual.
Rather than waiting until you feel very thirsty, try drinking water regularly throughout the day. Keep a water bottle nearby, drink with meals, and take a few sips during breaks. If you exercise or spend long hours in the sun, remember that you may need additional fluids.
Can you drink too much water?
While drinking enough water is important, drinking excessive amounts in a short period can also be dangerous. Too much water can dilute the sodium in your blood, causing a condition known as hyponatremia. This is uncommon in healthy people who drink normally, but it is a reason to avoid forcing yourself to consume large quantities of water quickly.
People with certain kidney, heart, or liver conditions may also need specific fluid limits based on medical advice.
Ultimately, there is no single amount of water that works for everyone. The goal is to drink enough to replace the fluids your body loses, taking into account your daily activities, the weather, and your individual needs.
Water is essential for the body to regulate its temperature, transport nutrients, support digestion, and carry out other important functions. You do not need to obsess over every glass, but you should make drinking water a regular part of your day.
The next time someone tells you to drink more water, remember that the important question is not simply how many glasses you have consumed, but whether you are giving your body the fluids it needs.
Brenna AKARABO
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