Hyponatremia translates to low sodium in the blood.This is a concern for marathon runners who drink too much water,and can cause life-threatening pressure on the brain.Why would this occur?

Question

Quizplus · Accepted Answer

In hyponatremia, the concentration of sodium in the blood drops. When there is excess water intake, it dilutes the sodium concentration further causing water to move into the cells by osmosis, including neurons. As neurons swell, they can become compressed by the skull resulting in pressure. This can lead to symptoms such as confusion, seizures, and even coma.

Hyponatremia Translates to Low Sodium in the Blood