What are the Benefits of Drinking Water to the Body?

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What is the first thing you do when you wake up in the morning? Do you check your phone or do you go to the kitchen and drink a glass of water? Nowadays, while many of us attach importance to healthy nutrition, regular sports and quality sleep, we can ignore our most basic need, water. However, about 60-70 per cent of our body is made up of water and every cell and organ needs water to function properly.
Drinking water not only quenches our thirst; it also plays a critical role in almost every aspect of life, from our metabolism to our skin, brain function and joint health. So how much water should we drink a day? Is it really beneficial to drink water on an empty stomach in the morning? Can drinking too much water be harmful? In this article, we will discuss everything you need to know about water consumption in the light of scientific data and with recommendations that can be adapted to daily life.
Why is drinking water so important?
The human body is a marvellous system in which complex biochemical reactions work without interruption. Many factors are necessary for the smooth functioning of this system; however, water is the basis of all of them. Water is not just a drink, it is life itself. Every cell, tissue and organ in our body survives with the presence of water.
Our brain consists of about 75 per cent water, our blood 90 per cent, our muscles 75 per cent and even our bones 22 per cent. These figures clearly show us how vital water is. Every day our bodies lose water in various ways: through sweating, urine, faeces and even during breathing. The average adult loses about 2-2.5 litres of water per day under normal conditions. This amount increases even more in hot weather, during sports or in case of illness.
Dehydration, i.e. a condition in which the body does not get enough water, can manifest itself with mild symptoms at first: dry mouth, headache, difficulty concentrating, fatigue. However, when it becomes chronic, it can lead to serious health problems. Kidney stone formation, urinary tract infections, constipation, low blood pressure and even heart problems are directly related to insufficient water consumption. Therefore, drinking regular and sufficient amount of water every day is one of the cornerstones of a healthy life.
The Role and Functions of Water in the Human Body
Water is not a passive filler in our body; on the contrary, it undertakes active and vital tasks. It ensures the balance of intracellular and extracellular fluids, mediates the transport of nutrients to the cells and makes it possible to remove metabolic wastes from the body. Oxygen, vitamins, minerals and other nutrients reach the organs thanks to water, which is the main solvent in the bloodstream.
Water also plays a critical role in regulating body temperature. Evaporating through sweat in hot weather or during physical activity, water cools the body and prevents overheating. It acts as a natural lubricant for our joints; the main component of joint fluid is water. Insufficient water consumption can increase joint pain and negatively affect mobility.
Our brain is also greatly affected by water. Even mild dehydration has a negative impact on cognitive functions. Concentration disorders, memory problems, mood changes and a decrease in decision-making ability can occur. Therefore, the simplest way to protect your mental performance is to drink water regularly throughout the day.
How Much Water Should I Drink a Day?
The question of how many litres of water we should drink a day is one of the most frequently wondered topics. Although the need for water varies from person to person, it is generally recommended that a healthy adult drink 2-2.5 litres (approximately 8-10 glasses) of water a day.
Factors such as age, gender, body weight, physical activity level, climatic conditions and health status affect the need for water. While water loss increases in hot weather in summer, it is necessary to be careful in winter.
A practical tip: Your urine colour gives you information about your water consumption. Light yellow urine indicates adequate hydration, dark yellow or amber urine indicates that you need to increase your water consumption.
15 Scientific Benefits of Drinking Water to the Body
1. Regulates the Digestive System and Prevents Constipation
Water helps the breakdown of food and absorption of nutrients. It maintains acid balance in the stomach, keeps the stool soft in the intestines and regulates bowel movements. Water, especially consumed with fibre foods, is extremely effective in preventing constipation.
2. Protects Kidney and Liver Health
Kidneys filter toxins in the body and excrete them with urine. Adequate water consumption enables the kidneys to fulfil this task comfortably and prevents the formation of kidney stones. The liver also needs water in the detoxification process; sufficient water helps the liver to neutralise harmful substances.
3. Supports Cardiovascular Health
Water maintains blood fluidity and regulates blood pressure. Dehydration can cause the blood to thicken and make the heart work harder. Regular water consumption can help reduce the risk of heart attack and stroke.
4. Increases Brain Functions and Concentration
Most brain tissue is made up of water. Even mild dehydration can lead to distraction, memory problems and mood changes. Drinking enough water maintains mental clarity and improves cognitive performance.
5. Maintains Skin Health and Elasticity
Water supports skin moisture from the inside. Dry skin accelerates the formation of wrinkles and gives an unhealthy appearance. Drinking plenty of water contributes to keeping the skin smooth, shiny and supple. Water can also help reduce acne and skin rashes.
6. Protects Joint and Muscle Health, Prevents Cramps
The main component of joint fluid is water. Adequate water consumption provides lubrication of the joints and increases mobility. It also prevents muscle cramps during sports, reduces muscle fatigue and accelerates recovery.
7. Strengthens the Immune System
Water helps the lymphatic system to function properly. The lymphatic system cleans harmful substances in the body and ensures the circulation of immune cells. Regular water consumption can increase resistance to infections.
8. Helps Weight Control
Water is a calorie-free drink and gives a feeling of satiety. Drinking a glass of water before meals facilitates portion control and prevents overeating. In addition, water accelerates metabolism and supports fat burning.
9. Accelerates Detoxification and Toxin Excretion
Waste substances in the body are excreted with urine and sweat thanks to water. Adequate water consumption ensures that this process takes place effectively and contributes to cleansing the body.
10. Increases Energy Level and Fights Fatigue
Dehydration is one of the main causes of fatigue and weakness. Water supports energy production by facilitating the transport of oxygen and nutrients to cells. When you feel tired, drinking a glass of water can have a revitalising effect in a short time.
11. Protects Oral Health and Prevents Bad Odour
Adequate water consumption increases saliva production. Saliva maintains the balance of bacteria in the mouth and prevents tooth decay. Dry mouth is a common cause of bad breath, so drinking water is also important for oral health.
12. Relieves Dry Eye
Water maintains the balance of intraocular fluids. Dry eyes, especially in those who work at the computer for a long time, may be related to insufficient water consumption.
13. Improves Sleep Quality
Dehydration can negatively affect the quality of sleep during the night. Adequate water consumption helps muscles to relax and a more comfortable sleep. However, drinking too much water just before going to sleep can lead to frequent trips to the toilet at night, so it is important to spread water consumption throughout the day.
14. Reduces Reflux and Gastritis Symptoms
Water dilutes stomach acid and protects the stomach wall. For people with conditions such as reflux and gastritis, drinking plenty of water can relieve symptoms.
15. Reduces Stress and Anxiety
Dehydration can increase the level of cortisol (stress hormone). Adequate water consumption helps to reduce stress levels and stabilise mood.
Water Consumption in Special Cases
Importance of Drinking Water During Pregnancy
During pregnancy, the need for water increases significantly. The amniotic fluid required for the development of the baby is largely composed of water. Expectant mothers should drink at least 2.5-3 litres of water a day for both their own health and the healthy development of their babies. Problems such as constipation, oedema and urinary tract infections, which are common during pregnancy, can be largely prevented by adequate water consumption.
Water Requirement During Breastfeeding
Breastfeeding mothers need extra fluids for milk production. It may be useful to increase daily water consumption up to 3 litres. Since about 90 per cent of breast milk consists of water, it is also critical for the baby's nutrition that the mother drinks enough water.
Water Consumption Strategies for Athletes
A significant amount of water is lost through sweating during physical activity. It is recommended that athletes drink about 500 ml of water 2 hours before exercise, 200-300 ml every 15-20 minutes during exercise and 1.5 times the weight lost after exercise. This is important for maintaining performance and preventing muscle cramps.
Water Consumption in Winter
Although the feeling of thirst decreases in cold weather, the body's need for water continues.The importance of water consumption in winter is often overlooked; however, the risk of dehydration increases due to dry air and heating in indoor environments. It is important to maintain your regular water drinking habits even in winter.
Correct Water Drinking Methods and Timing
Benefits of Drinking Water on an Empty Stomach in the Morning
During the night, the body loses water as metabolic processes continue. Drinking a glass or two of water as soon as you wake up in the morning awakens the metabolism, activates the digestive system and helps flush out toxins. This simple habit can boost your energy levels throughout the day.
Water Consumption Before and After Meal
Drinking a glass of water 20-30 minutes before meals helps control appetite and prevents overeating. However, drinking too much water during meals can dilute stomach acid and slow digestion. It is healthier to wait for a while instead of drinking large amounts of water immediately after a meal.
Hydration before, during and after exercise
Drinking enough water before exercise improves performance. You can maintain fluid balance by drinking water at regular intervals during exercise. After exercise, drink plenty of water to compensate for lost water.
Should I Drink Water Sitting or Standing?
Drinking water while sitting allows the water to reach the stomach more gently and facilitates digestion. Standing water can create a sudden load on the digestive system. If possible, it is ideal to sit and drink water slowly.
How to Gain the Habit of Drinking Water?
Most of us can forget to drink water. Here are practical tips:
- Set reminders to drink water on your phone or smartwatch.
- Always carry a water bottle with you.
- Keep a jug of water in front of you throughout the day.
- Enjoy drinking flavoured water (lemon, mint, cucumber slices).
- Add drinking a glass of water to your routine every morning.
- Provide easy access to fresh and clean water by using a carboy water system.
Symptoms and Risks of Dehydration
Symptoms of mild dehydration: dry mouth, dark urine, headache, fatigue, difficulty concentrating.
Symptoms of severe dehydration: dizziness, rapid heartbeat, low blood pressure, confusion, fever.
Chronic dehydration can lead to serious health problems such as kidney stones, urinary tract infection, constipation and even heart problems.
Is There Any Harm of Drinking Too Much Water?
Yes, too much of everything is harmful. Excessive water consumption can lead to a dangerous condition called hyponatremia. Hyponatraemia occurs when the level of sodium in the blood is excessively diluted. Symptoms can include headache, nausea, confusion, seizures and even coma.
This usually occurs when too much water is drunk in a short time. Under normal conditions, daily consumption of 3-4 litres of water is safe, but excessive consumption can be risky. People with kidney or heart disease should consult their doctor about water consumption.
Water Quality and Healthy Water Consumption
The quality of drinking water is just as important as drinking water. Tap water can sometimes contain chlorine, heavy metals or other contaminants. It is therefore necessary to take special precautions for clean water consumption at home and at work.
Thanks to modern technologies, you can effectively remove harmful substances from your water and drink clean, healthy water. The use ofa qualitywater purification filter is an important investment to protect your family's health.
Importance of Water Treatment Systems
Today,water treatment devices are equipped with various technologies. These systems provide filtering of chlorine, heavy metals, bacteria and other harmful substances in water. Especially for households using city mains water purification systems are indispensable.
Hydrogenated Water and Antioxidant Properties
Hydrogen water purifier technology, which has become popular in recent years, can offer additional health benefits by increasing the antioxidant properties of water. Hydrogenated water can help neutralise free radicals and exert an anti-ageing effect at the cellular level.
Alkaline Water and pH Balance
How to make alkaline water? the question is often wondered. Alkaline water is a type of water with a pH value between 8-9 and is thought to support the body's acid-base balance. Our body works best in a slightly alkaline environment and alkaline water can support this balance.
pH Value and Health Relationship
What is pH value? To answer the question, pH is a scale that measures the degree to which a substance is acidic or basic (alkaline). The human body works best at a slightly alkaline pH level (7.35-7.45). The pH value of the water you consume can affect your overall health.
In addition, parameters such as TDS (total dissolved solids) and ORP (oxygen reduction potential) determine the quality of water. Rainwater water treatment systems aim to provide you with the best quality water by optimising these values.


