30 December 2011 Last updated at 03:58 ET Help
From new drug therapies for cancer to artificial corneas to a vaccine for malaria, 2011 has been a year of remarkable medical breakthroughs.
One of the most significant breakthroughs came from research scientists in Edinburgh and Cambridge who have discovered what they say could eventually be a cure for multiple sclerosis.
http://www.bbc.co.uk/news/health-16362314