[PEN-L:156] long hours - Japan medical study

[knowware@xxxxxxxx (Tom Walker)]

(2) WORKING LONG HOURS CAN DAMAGE YOUR HEALTH -
     BUT SO CAN WORKING VERY FEW

(Working hours as a risk factor for acute myocardial
infarction in Japan: case-control study)
http://www.bmj.com/cgi/content/full/317/7161/775

It is suspected that extremely long working hours increase the
risk of sudden death from too much occupational stress, but
few medical studies have examined whether working hours
influence the risk of heart attack (acute myocardial infarction).
In a Japanese study published in this week's BMJ, Dr Shigeru
Sokejima and Professor Sadanobu Kagamimori report that
there is a 'U' shaped association between the mean monthly
working hours and the risk of heart attack (ie. those people
who work very few or very long hours are at greatest risk).
The authors also found that the risk increased with the length
of hours people worked. They suggest that further research
should be conducted to assess why this relationship exists,
particularly in Japan where the incidence of heart attack is
relatively low.

Contact:

Dr Shigeru Sokejima, Department of Welfare Promotion
and Epidemiology, Faculty of Medicine,Toyama Medical
and Pharmaceutical University, Japan
email: sokejima@xxxxxxxxxxxxxxxxxxx




Regards,

Tom Walker
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