Overhydrating Linked to Brain Swelling

Comedian George Carlin once asked, "When did we get so thirsty?" Eight glasses of water a day, as your grandmother prescribed, is probably plenty for most people most of the time.

NFL star Tom Brady and Riverdale actress Madelaine Petsch both sparked controversy this year as each attributed their peak physique to drinking excessive amounts of water.

Scores of nutritionists and doctors reacted, warning that is a sure-fire way for most of us, who do not work out professionally, to develop a sodium deficiency.

Now, a new study shows yet another caveat. Read more