A related link to this issue is the radio article that appeared today (Sunday 21 Oct) on the Rachel Burden's BBC radio station 5Live:
http://www.bbc.co.uk/fivelive/ The article starts 1 hr 33 mins into the programme - no need to listen to the whole thing, just fast fwd to 1:33
CORRECTION
Its much easier to click on the link below which ILoadMyself has provided, then select 'cabin fever'. Thank you ILM!