Drinking water is vital to our survival, but too much of it can kill you, medical experts warn.
The kidneys control the amount of water and salts in the body, but when a person consumes too much liquid in a short period of time, the kidneys might not be able to flush it out fast enough, causing the blood to become waterlogged.
And too much water in the brain cells can lead to swelling, seizures, comas and even death.
“Drinking too much water can cause a fatal condition called hyponatraemia - a low amount of salt levels in the blood,” Amcal dietician Megan Alsford tells Be.
“There is no one set amount of water you need to drink as it’s very individual. I recommend you don't drink large amounts of plain water in one go."
Last week, a 59-year-old woman almost died after consuming too much water while trying to flush out a urinary tract infection.
She was taken to doctors at King’s College Hospital in London and was found to be suffering from acute hyponataemia after drinking a pint of fluid every 30 minutes.
"During her visit to the emergency department, she became progressively shaky and muddled,” doctors described of her symptoms in the medical journal BMJ.
“She vomited several times, was tremulous and exhibited significant speech difficulties."
However, Megan says this condition is fairly rare among healthy individuals.
“If you feel really thirsty, you are most likely already dehydrated,” she tells Be.
“If you are unwell and have been vomiting or have diarrhoea or you are participating in high intensity exercise for more than an hour, you may also need to replace your electrolytes, and there a number of drinks out there besides water that can help with this.”
It’s believed that American artist Andy Warhol died in 1987 from water intoxication after having his gallbladder removed.
Health authorities recommend we drink around eight glasses of water a day.