Negative Health Effects of Dehydration
Dehydration is a serious condition that affects people of all ages, but it can be particularly dangerous for young children and older adults.
Understanding the causes, symptoms, and preventative measures is key to ensuring you stay healthy and hydrated throughout the day.
What Causes Dehydration?
Dehydration happens when your body loses more fluids than you consume. This can occur for several reasons, such as not drinking enough water, experiencing severe diarrhoea or vomiting, sweating excessively from exercise or hot weather, or taking certain medications that increase urination.
As water makes up about 60% of your body, it is essential for maintaining normal bodily functions. When you lose fluids and don’t replace them quickly enough, dehydration can set in.
Common causes of dehydration include:
- Hot and humid weather
- Intense physical activity
- Vomiting or diarrhoea
- Fever
- Excessive sweating
- Certain medications
Recognizing the Symptoms of Dehydration
Dehydration can present itself in many ways, some of which may not be immediately obvious. It’s important to recognize the signs early to prevent the condition from worsening. Here are some common symptoms across age groups:
Symptoms of Dehydration in Children
- Dry mouth and tongue
- No tears when crying
- Sunken eyes or cheeks
- Few or no wet nappies for several hours
- Irritability or drowsiness
If you notice any of these signs in your child, it’s important to rehydrate them with fluids or an electrolyte solution.
Symptoms of Dehydration in Adults
- Thirst
- Dark yellow urine
- Less frequent urination
- Fatigue or dizziness
- Dry skin
- Headaches
While thirst is often the first sign of dehydration, it may not always be a reliable indicator. You should also be aware of these other symptoms to take action early.
Complications of Severe Dehydration
Severe dehydration can lead to more serious complications, including:
Heat Exhaustion
If you're exercising vigorously or spending a lot of time in hot environments, dehydration can result in heat exhaustion. This condition is characterized by dizziness, confusion, rapid heartbeat, and fainting, and it requires immediate rehydration and cooling.
Seizures
In more severe cases, a lack of electrolytes in your body due to dehydration can disrupt normal cell function, potentially leading to seizures or involuntary muscle spasms.
Kidney Damage
Frequent or prolonged dehydration can also affect your kidneys, leading to problems such as kidney stones, infections, and even kidney failure.
How to Prevent Dehydration
To avoid dehydration, it’s essential to stay proactive. Drink plenty of water throughout the day, especially when exercising or spending time in hot climates. Eating fruits and vegetables with high water content, such as cucumbers, watermelon, and oranges, can also help keep you hydrated.
Aim to drink at least 6-8 cups of water each day. If you’re engaging in vigorous exercise or spending time outdoors in hot weather, you may need to drink even more.
Why Choose Great Water Filters Australia?
At Great Water Filters Australia, we take hydration seriously. Our range of water filtration systems ensures you always have access to clean, great-tasting water, free from contaminants like chlorine, fluoride, and harmful bacteria.
With our advanced filtration technology, we not only remove impurities but also replace healthy minerals and balance your water to an optimal pH9. Whether you need an under-sink water filter, reverse osmosis system, or a whole-house water filtration solution, our products are designed for quick and easy cartridge replacement.
Check out our cartridge replacement options today and ensure your system is always working at its best.
Our Commitment to You
We’ve been proudly serving Australians for over 30 years, offering the best in water filtration technology. With our 100% no-risk guarantee and 10-year support package, you can trust that your water filtration system will deliver clean water, backed by professional customer care.
Next Steps
- Discover our most popular Elite Series 3 under-sink reverse osmosis filter
- Learn more about reverse osmosis technology
- Feeling fatigued or have frequent headaches? It could be dehydration. Find out how drinking more water can help prevent migraines
- Not sure which water filter is right for you? Compare our water filtration systems here

