Every day we breathe and sweat moisture, which we have to compensate by drinking enough. But how much water do we actually need? Do all those coffee locks that we resist count too? And what happens to our body if we do not drink enough?
How much water do we need? In our climate it is necessary to drink one and a half liters of water per day. 6 Facts about drinking water.
The human body consists of 60 to 70 percent water. During the day and the night we lose fluid through breath, sweat and urine. For a good body function it is therefore important to supplement the water supply in our body. In recent years, studies have yielded various recommendations. In reality, your water needs depend on many factors, such as your health, how active you are and where you live. According to the recommendations of the Superior Health Council, an average adult normally needs 2.5 liters of water per day to keep the water balance in balance. That includes the water that we absorb from our food. In our climate it is necessary to drink one and a half liters of water per day.
Coffee has a slight diuretic effect, so that a cup of coffee does not provide the same amount of water as a glass of water. We sometimes hear that we have to drink one and a half liters of water on top of all other drinks. That is not true: everything that is drinkable - coffee, tea, soup, soft drinks, milk ... - counts. However, you should keep in mind that coffee and tea have a slight diuretic effect, so that a cup of coffee does not provide the same amount of water as a glass of water. That effect is much greater with alcohol; the moisture loss that causes (multiple glasses) alcohol must be compensated by drinking more water. Soft drinks, milk and fruit juice may be suitable for our water supply, they also contain calories. An excess of these drinks therefore entails other health risks.
Drinking too little water has several important unwanted effects for the body and mind:
Drinking plenty of water increases your body's ability to burn fat. A study in the journal Journal of Clinical Endocrinology and Metabolism showed that drinking half a liter of water increased the metabolism in healthy men and women by 30 percent. Drinking lemon water in the morning is good for you.
Various studies also suggest that one or two glasses of water before a meal help to give you a feeling of satisfaction more quickly, so that you would eat less. In one of the most recent studies, a group of overweight 55-year-old was put on a low-calorie diet for three months. Half of them drank two glasses of water for each meal. After three months these subjects were on average seven kilograms emaciated, the others only five. Further research is still needed. A 2007 study found that drinking water before a meal reduced caloric intake and hunger in older adults, but had little effect in people under 35.
90 minutes of sweating without compensating for water loss, the brain shrinks as much as one year of age. That's what British researchers found in a study on teenagers. Dehydration not only has an effect on the size of the brain, but also how hard it must work. The subjects who did not drink enough scored equally well on a test as the other test subjects, but it cost them much more brain activity. When the dehydrated teenagers became drunk again, their brains regained their usual proportions.
Dehydration does not only affect your body, you can also become ill-disposed, according to a study by Tuft University. Students were asked to exercise intensively for 60 to 75 minutes. One group was allowed to drink water during the training session, the rest did not. The second group appeared to be tired, badly tempered, tense and negative.