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Loss of smell link to Alzheimer’s

Loss of smell sense may be an early indication of Alzheimer's disease, research suggests.

Scientists from the New York University School of Medicine found that changes linked to the most common form of dementia begin in mice in an area of the brain responsible for recognising smells.

The physical symptoms coincided with impaired olfactory, or smell, function.

Affected animals had to sniff odours for longer to remember them than healthy mice. They also had problems differentiating between smells.

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