Comment by abrookewood

Yes, I was going to mention this. Had a friend who went down the coast for a day trip with a bunch of mates. On the way back on the train (1.5 hour ride) they had a competition to see who could drink the most water and most of them had several litres, a few of them managed a bit more. My mate also had a bunch of chips/snacks, but not everyone did.

Later that night, he got a desperate phone from his friends mum, screaming at him "What did you take! What drugs did you take!!!", he replied that they hadn't taken anything, but wasn't really believed. His friend was rushed to hospital with severe seizures and convulsions. The doctors eventually put him on a saline drip and he recovered.

Basically his friend lowered the salt content in his body so much that his body could not pass electrical signals. My friend was fine because he had consumed a bit of salt in his snacks. Kinda crazy.