For good health you need to slavishly drink eight glasses of water everyday, right? Wrong!
Dr Dan Negoianu and Dr Stanley Goldfarb, of the Renal, Electrolyte and Hypertension Division at the University of Pennsylvania found no scientific proof for four commonly held myths about drinking water:
- It does not improve skin tone.
- It does not aid dieting by reducing your appetite.
- It does not flush out toxins – it just increases the volume of your urine without changing the material in the urine.
- It does not control headaches. When we need water, the brain releases a hormone in response to dehydration that tells the kidney to reduce the excretion of water. This means you’ll feel thirsty well before there’s any impairment that dehydration might induce.
People in dry, hot climates, the elderly and athletes, have an increased need for fluid intake, but for average healthy people, more water does not mean better health.
So what should we be doing? Eat five portions of fruit and vegetables a day, have a balanced diet (even dry food such as cheese contain a fair amount of water) and knock back between 1 and 1.5 litres of water daily.
Guess you can’t always believe what you’ve always believed…