John Hough with Jane Hughes
Media playback is unsupported on your device
Video

How B vitamins helped one man

High doses of B vitamins could help slow the rate of brain shrinkage in older people, one of the symptoms of possible dementia, according to a study.

John Hough took part in the research because he has memory impairment, and said he noticed a marked difference when he stopped taking the vitamins.

  • 09 Sep 2010
  • From the section Health
Go to next video: Vitamin B 'puts off Alzheimer's'