Risk of Dehydration in the Elderly


Older people are at an increased risk of dehydration, resulting from:

  • Decreased thirst reflex
  • Less fluid in the body
  • Inability to obtain water due to physical immobility or medical conditions (such as dementia)

Seniors are at a particularly high risk of mild to moderate dehydration during prolonged heatwaves.

Did you know?

Certain medications can lead to dehydration. Learn More »

Signs and Symptoms of Dehydration in the Elderly

Older people will experience the common signs and symptoms of dehydration, including:
In addition, elderly dehydration may cause reduced sweating under the arms.

If any signs or symptoms of dehydration are present, it is best to seek medical assistance and start therapy as soon as possible to prevent worsening of this condition.

Did you know?

Seniors may exhibit reduced sweating under the arms as a sign of dehydration. Place some tissue paper under the arms for a few minutes. If the paper does not moisten, the person may be dehydrated.

Managing Dehydration in Seniors

If you are elderly, or help care for someone who is, there are some simple ways to help prevent and manage dehydration. These include:

  • Be aware and monitor for the signs and symptoms of dehydration
  • Consume fluids on a regular basis (e.g. every 1.5 hours by day).
  • Consume fluids at routine events, such as before or after showering.
  • Try to consume “wet” foods such as Jello™ or soups.

To prevent and relieve dehydration, seniors may consume an oral rehydration solution (Hydralyte).
Hydralyte is scientifically formulated to contain the correct balance of glucose and electrolytes for rapid rehydration. The formulation is based on the World Health Organization criteria for effective rehydration. Water or sugary drinks are not as effective as Hydralyte, as they do not restore lost electrolytes (which retain the fluid).

Learn more about how Hydralyte compares to other commonly used solutions

Healthcare Professionals

Hydralyte Special Offers

Coupons and Promotions

Where to Buy

Find Hydralyte