what are its symptoms?
Thirst, seizures and comas.
Hypernatremia
The major symptom is thirst. The most important signs result from brain cell shrinkage and include confusion, muscle twitching or spasms. With severe elevations, seizures and comas may occur.

what is durian? It is the fruit of from tree species belonging to the genus "Durio". where is it found? Borneo and Sumatra. what are its types? Mon Thong, Chantaburi No. 1, Chantaburi No. 3, D24 and XO. is it nutritious? Yes, it contains proteins, carbohydrates, vitamin C, and manganese. does it have a smell? Yes, an unusual and disagreeable odour. can you name any other two food items which contains the mentioned vitamin? Guava, broccoli. which disease is caused due to its deficiency? Scurvy. does its intake causes any side effects? Nausea, abdominal cramps and diarrhea. any other cause of the mentioned disease other than deficiency? Malnutrition and poor dietary choices. how is it treated? By preventing dehydration, low blood sugar, low body temperature, infection, correct electrolyte imbalances and micronutrient deficiencies. was any trial conducted in relation to this? Yes, human trials were conducted to study scurvy. can you name any other disease that is caused due to the former cause you mentioned just above? Hypernatremia.
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Hypernatremia [SEP] Signs and symptoms
The major symptom is thirst. The most important signs result from brain cell shrinkage and include confusion, muscle twitching or spasms. With severe elevations, seizures and comas may occur. Severe symptoms are usually due to acute elevation of the plasma sodium concentration to above 157 mmol/L (normal blood levels are generally about 135–145 mmol/L for adults and elderly). Values above 180 mmol/L are associated with a high mortality rate, particularly in adults. However, such high levels of sodium rarely occur without severe coexisting medical conditions. Serum sodium concentrations have ranged from 150–228 mmol/L in survivors of acute salt overdosage, while levels of 153–255 mmol/L have been observed in fatalities.