Scan of a brain of an Alzheimer's patient which shows significant signs of shrinking compared to an normal brain.
Media playback is unsupported on your device

Growing concern over dementia-drugs 'link'

American researchers say they have confirmed a link between high doses of some over-the-counter medicines and dementia.

The study claimed that common treatments for hay fever and sleeplessness increased the chances of developing the condition.

Sophie Hutchinson reports.

  • 27 Jan 2015
Go to next video: Care home residents enjoy cocktail party