10 signs of dehydration & how to stay hydrated
Dehydration is when we lose more water than what we take in and there are various levels and causes of dehydration. It can happen for a variety of reasons, such as:
- Not drinking enough water
- After drinking too much alcohol
- Losing excess fluid due to fever, vomiting or diarrhoea
- Travelling
- As a result of intense exercise or hot weather
Symptoms of dehydration can range from mild to severe. For example, feeling thirsty is a sign of mild dehydration. As you become dehydrated, there is less water than normal in your blood. This sends signals to your brain that you need to look for water.
Signs and symptoms of mild to moderate dehydration:
- Thirst
- Dry mouth
- Headaches
- Dizziness
- Dark urine
Signs and symptoms of moderate dehydration:
- Extreme thirst
- Fast heart rate and low blood pressure
- Fever
- Irritation, drowsiness or confusion
- Little or no urine
In these situations, it’s important to move to a cool space and drink small amounts of cool water, often. In some cases, an oral rehydration solution may also be beneficial. If you’re concerned or symptoms don’t improve, seek medical advice.
Do I need an electrolyte drink for dehydration?
In some situations, oral rehydration (or electrolyte drinks) may be beneficial for improving water absorption in the gut and replacing lost electrolytes. You can find these in most chemists and supermarkets.
There are some family members who may be more vulnerable to dehydration and need some extra attention.
- It’s useful to be aware of dehydration symptoms when looking after infants and children due to their smaller size and increased likelihood of vomiting and diarrhoea.
- Older adults may have swallowing difficulties with less ability to detect thirst and conserve water.
- Individuals who are exercising or working outdoors, especially in the heat.
Keep an eye out for dehydration signs and remember to drink before you feel thirsty.
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This article is for informational purposes only and does not provide medical advice, diagnosis, or treatment. Any information published on this website or by this brand is not intended as a substitute for medical advice. If you have any concerns or questions about your health you should consult with a health professional.