A fascinating article written by Saba Salman in the Guardian on 19^th November discusses the longest-running research project into people with Down’s syndrome. The study, carried out by Dr Janet Carr, now 87, has been running for 50 years. It began with 54 babies who were born with the condition in 1964.

http://www.theguardian.com/society/2014/nov/19/janet-carr-research-downs-syndrome-family