Guwahati, March 15 -- Drinking water is important for digestion, blood circulation, and body temperature control, but consuming too much can be harmful and lead to serious health problems.

If a person drinks too much water too quickly, it can lower the amount of sodium in the blood. This condition, called hyponatremia or water intoxication, makes the body's cells swell. When this happens in the brain, it can cause confusion, nausea, headaches, seizures, and in severe cases, coma or even death.

Athletes, especially long-distance runners, are more likely to drink too much water without replacing lost salts. Some people also drink excessive water due to medical conditions or fear of dehydration, which can put them at risk. The kidneys can ...