India, Oct. 30 -- Dr Judhajit Sengupta, consultant, critical care medicine, Narayana RN Tagore Hospital, Mukundapur, Kolkata, has described exercise-associated hyponatraemia (EAH) as a risk linked to excessive fluid intake during prolonged exercise, including marathons, according to an Oct 29, 2026 report by Adrija Dey.

What the doctor said about EAH

Dr Judhajit Sengupta said exercise-associated hyponatremia is “a syndrome that is characterised by a decrease in the amount of sodium in the blood.” He added that even special oral rehydration solution (ORS) and sports drinks “are not an exception, because they contain sodium in a lower concentration than in the blood.”

He said hydration during a run requires balance because consuming too mu...