Dehydration is a common, often underestimated problem among older people. As we age, the sensation of thirst decreases, but the need for water remains. Understanding the importance of hydration can prevent serious complications.
Why Older People Are at Greater Risk
Several physiological changes make older people more vulnerable to dehydration:
- Reduced sensation of thirst: The ageing brain sends fewer warning signals
- Reduced kidney function: The kidneys lose the ability to concentrate urine
- Lower body water content: The ageing body has smaller water reserves
- Medication: Diuretics and other drugs increase fluid loss
- Reduced mobility: Difficulty getting water or going to the bathroom
- Fear of incontinence: Some older people avoid drinking to avoid frequent urination
Consequences of Dehydration
A lack of water in the body can have serious, rapid effects:
- Mental confusion: Dehydration is one of the most common causes of sudden confusion in older people
- Falls: Dizziness and imbalance increase the risk of accidents
- Urinary infections: Concentrated urine favours infections
- Constipation: Lack of water hinders bowel movement
- Kidney problems: The kidneys suffer from lack of hydration
- Hospitalisation: Dehydration is a frequent cause of emergency room visits
Signs of Dehydration
It’s important to recognise the signs early:
- Dry mouth and lips
- Dark, strong-smelling urine
- Fewer trips to the bathroom
- Dry skin with little elasticity
- Fatigue and weakness
- Headache
- Dizziness when standing up
- Confusion or disorientation
How Much Water Should Older People Drink?
The general recommendation is 1.5 to 2 litres of fluids per day, but this varies depending on:
- Weight and body size
- Physical activity level
- Health conditions (some heart or kidney problems may require restriction)
- Ambient temperature
- Medications taken
Important: Always consult a doctor to determine the right amount for each specific case.
Practical Tips to Ensure Hydration
Simple strategies that can make all the difference:
- Always keep water in sight: A glass or bottle near where the older person spends most time
- Set schedules: Offer water at fixed times of day (on waking, at meals, at bedtime)
- Vary fluids: Water, tea, natural juices, soups, jellies
- Water-rich fruits: Watermelon, melon, orange, grapes
- Smaller glasses: Less intimidating than a large glass
- Flavoured water: Add lemon or orange slices or mint leaves
- Use straws: Makes drinking easier for those with difficulty
- Avoid excess caffeine: Coffee and black tea in large amounts are diuretics
The Role of the Carer
Carers play a key role in preventing dehydration:
- Monitor fluid intake throughout the day
- Observe urine colour as an indicator
- Watch for signs of dehydration
- Make hydration a pleasant, social moment
- Report changes to the doctor or health team
Professional Support at Home
At A(vós) Amados®, our professionals ensure older people maintain proper hydration throughout the day. Support includes preparing balanced meals, monitoring fluid intake and communicating with the family about health status.
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