What are the risks linked to dehydration

If the body loses a substantial amount of fluids and salts and they are not quickly replaced; for example: by drinking, the body starts to "dry up" or get dehydrated. Severe dehydration can cause death. The usual causes of dehydration are a lot of diarrhoea and vomiting

Alteration of physical and mental functions, cerebral edema, convulsions, hypovolemic shock, coma and death.