Twenty-one participants in a mobilising labour market project offering temp
orary, alternative employment in Sweden were followed longitudinally for on
e year, including a six month post-participation follow-up period. Earlier
analyses of self-rated psychosocial data have indicated consistent improvem
ents in mental health and quality of life. In the present study, however, a
significant rise in serum prolactin, plus decreased dehydro-epiandro-stero
ne sulphate levels and tendencies towards increased alanine aminotransferas
e, gamma -glutamyl transferase and diastolic blood pressure, seem to discon
firm the hypothesis that biological markers of psychosocial health would im
prove in a similar fashion. It is speculated that this apparent inconsisten
cy could be part of a protective adaptation to long-term unemployment simil
ar to the cocooning tendencies in maternal behaviour. Specifically, we argu
e that this could protect against the stress of being in an uncontrollable
and 'helpless' situation by facilitating a re-focusing on more private matt
ers as opposed to 'hopeless' job seeking. While being potentially detriment
al for people with fair chances on the labour market, it is possible that s
uch an adaptation may be helpful for more vulnerable groups. (C) 2001 Elsev
ier Science Ltd. All rights reserved.