Have You Heard About Overhydration?

Photo source: openverse, Alexey Demidov

We are often told to drink plenty of water, especially as we get older. Staying hydrated is important, but many Kiwi seniors have never heard about overhydration. It is not common, yet it is worth knowing about so you can enjoy a healthy balance.

What Is Overhydration?

Overhydration happens when you take in more water than your body can remove. Your kidneys normally balance fluid levels, but too much water can dilute the sodium in your blood. Sodium helps your nerves, muscles and cells work properly. When levels fall too low, a condition called hyponatraemia can develop.

Why Older Adults May Be More at Risk

As we age, our kidneys may not clear fluid as efficiently as before. Some medications, including certain diuretics, antidepressants and pain relievers, can also affect how the body handles water. Heart, kidney and liver conditions may play a part too. Because of this, drinking large amounts of water just because someone said you should is not always helpful.

Signs to Look Out For

Overhydration can be easy to miss, because early signs are similar to many other health concerns. These can include headache, nausea, bloating, tiredness, muddled thinking and muscle cramps. In more serious cases, a person may become confused, very drowsy or unwell. Anyone with sudden confusion, seizures or severe symptoms needs urgent medical help, so call 111.

Finding a Healthy Balance

Most healthy older adults do well by drinking to thirst and sipping fluids steadily through the day. Tea, milk, soup and water-rich fruit and vegetables all count towards your fluid intake. Try not to gulp down large amounts quickly. In warm weather or during illness you may need a little more, but it is best to ask your GP how much suits you, particularly if you take regular medication or have a long-term condition.