General practice·General practice
Lightheadedness
Informed by recognized medical guidance
Overview
Lightheadedness is a feeling that you might faint or become dizzy. It is not the same as vertigo (a spinning sensation). It often passes quickly when you sit or lie down.
Key facts
- Lightheadedness is usually not serious and goes away on its own.
- Common triggers include dehydration, standing up too fast, or not eating enough.
- It can be a symptom of an underlying condition, but most cases are harmless.
- Sitting or lying down can help prevent fainting.
Very common. Almost everyone experiences lightheadedness at some point in their life.
It can affect anyone, but it is more common in older adults, pregnant women, and people with low blood pressure, anemia, or anxiety.