Salt has many other functions than just regulating the water content of the human body.
1 of 27 : Salt is a strong natural antihistamine. Salt can be used to relieve asthma by putting it on the tongue after drinking a glass or two of water. Salt is as effective as an inhaler, without the toxicity. You should drink one or two glasses (200ml) of water before putting salt on your tongue.
2 of 27 : Salt is a strong "anti-stress" element for the human body.