Fearing dementia in your 40s
Media playback is unsupported on your device
Video

Dementia in your 40s

Sophie Leggett is 41 years old and has a 50% chance of developing Alzheimer's in the next few years.

That's why she's taking part in research to try to find a cure for families like hers and other sufferers of the disease.

This video has been optimised for mobile viewing on the BBC News app. The BBC News app is available from the Apple App Store for iPhone and Google Play Store for Android.

  • 14 Jul 2017
  • From the section Health