Digestive Health


Find out how to spot the symptoms of dehydration and treat this condition and discover how the body uses electrolytes to restore pH balance.

Who is at risk of dehydration?

Young children and older people are at greater risk of dehydration, as loss of electrolytes occurs more rapidly in these two groups of people.


Dehydration occurs when there is a shortage of water in the body. This can happen at any age, but is especially dangerous in infants and the elderly.

Is your child dehydrated?

Dehydration is very common among children and can be life-threatening, particularly when caused by diarrhoea or gastroenteritis. Use this table to check for dehydration levels.

How is dehydration treated?

Taking extra fluids by mouth is the obvious treatment for dehydration and the drinking of water or other liquids is recommended.

Traditional healers to help with curbing diarrhoea

City Health has activated a host of measures in the run-up to the annual diarrhoea season, including engaging with traditional healers to help reduce the number of young children who die from this preventable disease.

Why electrolytes are so important

There is much talk about electrolytes and how important it is to not lose or overdo them. But do you know what electrolytes actually are and why they are so vital to the body?

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Ask the Expert

Digestive Health Expert

Dr. Estelle Wilken is a Senior Specialist in Internal Medicine and Gastroenterology at Tygerberg Hospital. She obtained her MBChB in 1976, her MMed (Int) in 1991 and her gastroenterology registration in 1995.

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