Boredom may lead to heart disease, stroke death

I hate these sensationalized headlines, they also do not link to the study itself so you can determine if the study says anything even remotely related to the headline. But I'm guilty of falling for the trap.
http://www.newsfix.ca/2013/06/25/boredom-may-lead-to-heart-disease-stroke-death/
Only one paragraph here, rest at link.
Psychological factors can play a big part in heart disease. A study, from researchers the Department of Epidemiology and Public Health, University College, London, finds a link between being bored at work and death from heart disease and other causes. They surveyed over 7,500 civil servants, aged between 35 and 55, between 1985 and 1988 about their boredom levels. Now, they noted how many of their participants had died, including heart disease deaths.