Those dizzy spells felt when standing up too quickly have been linked to cognitive decline and dementia later in life.
US scientists believe the brief drop in blood pressure that causes the dizziness – known as orthostatic or postural hypotension – may result in lasting damage to the brain.
The reduced blood flow is thought to cause vascular damage.
A longitudinal study has found those who suffered from orthostatic hypotension in middle age were 40 per cent more likely to develop dementia 20 years later than those who did not.
They also reported 15 per cent more cognitive decline.
The team of researchers tested 11,503 Americans with an average age of 54 who were taking part in a large study looking at the risk of artery disease in four US communities.
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