We always talk about staying hydrated, and there are many complex rumors and misconceptions about it. Recently, the website "NPR" published an article pointing out 5 major myths about drinking water.
Drink 8 glasses of water a day
Dr. Stanley Goldfarb, a kidney specialist at the University of Pennsylvania, stated that no one knows where this saying came from. Drinking large amounts of water or continuously consuming fluids does not provide significant health benefits.
Drinking lots of water helps detoxify the body
The kidneys are responsible for filtering toxins from the blood and excreting them in urine. However, drinking excessive amounts of water not only does not improve kidney function but can actually impair its filtering ability.
Drink more water for healthier skin
More than 60% of the human body is composed of water, so the effect of drinking a few extra glasses a day is very limited. Although a 2007 study showed that drinking 500 ml of water daily could increase skin blood flow, it is unknown whether these changes can make the skin healthier.
Drinking more water can help with weight loss
A more accurate statement is that drinking water is a powerful aid for dieters to control their food intake. Water is calorie-free and creates a feeling of fullness, preventing overeating. Of course, water is not the only "slimming tea." Some zero-calorie beverages have the same effect.
It's easy to get dehydrated during exercise
A person only experiences dehydration after losing 2% of their body weight in water. Marathon runners, cyclists, and hikers all need to be vigilant about dehydration. If you're just taking a walk in the park, there's no need to carry a water bottle.