Key takeaways
- Dehydration can cause dizziness.
- Thirst weakens with age.
- Dark urine is a warning sign.
- Drink regularly through the day.
- Water-rich foods count too.
Many people do not realise that mild dehydration can leave them feeling lightheaded and unsteady.
How hydration affects balance
Blood pressure
Less fluid means lower blood volume, which can make blood pressure drop when you stand up.
The inner ear
The inner ear's canals are filled with precisely balanced fluids that help detect movement.
Brain function
Even mild dehydration can affect concentration and reaction time.
Signs of dehydration
| Mild | More serious (seek care) |
|---|---|
| Thirst, dry mouth | Confusion |
| Dark yellow urine | Very little or no urine |
| Tiredness, headache | Rapid heartbeat |
| Lightheadedness | Fainting |
Simple hydration habits
Drink a glass of water when you wake up and with each meal, keep a bottle within reach, eat water-rich foods such as soups, fruit and vegetables, drink more in hot weather or after exercise, and limit alcohol. Hydration is one part of supporting your balance; VertiAid adds daily inner ear nutrition with vitamin D3, Aquamin® minerals and collagen.
Sources
- National Council on Aging – "Dehydration in older adults."
- Mayo Clinic – "Dehydration: symptoms and causes."
- Masento N.A. et al. – "Effects of hydration status on cognitive performance and mood," British Journal of Nutrition, 2014.
Common questions
Can dehydration cause dizziness?
Yes, it can lower blood volume and blood pressure, causing lightheadedness.
How much water should I drink?
Most adults need about 8 cups of fluid a day, more in heat or with exercise, unless advised otherwise.
Why are older adults more at risk?
The sense of thirst weakens with age.