Is it an urban myth that barbers have a very high risk of heart attacks because of their occupation?

According to Roy Hugh, barbers are prone to heart attacks. He mentioned several names of barbers he has known who lives were cut short because of a heart attack.

http://www.josephinesjournal.com/barbershop.htm

A more "scientific approach" would point the finger at "life styles," and NOT career paths.

We used to believe that top job responsibility and stressful executive positions led to higher incidence of heart attacks. Recent studies have proven this to be a fallacy. In a study, bartenders were found to be more vulnerable to heart attacks than barbers, and barbers more prone than physicians. In another series, blue-collar workers were found to be more susceptible to heart attacks than supervisory personnel and executives. It is obvious that lifestyle, and not the line of work, position or rank, is more of the determinant factor in heart attacks.

http://www.mayoclinic.org/diseases-conditions/heart-attack/basics/risk-factors/CON-20019520

I would agree with Zb that Roy Hugh (who?) (no, Hugh...) doesn't seem a particularly scientific source - and on reading the http://www.josephinesjournal.com/barbershop.htm article, I am even more convinced. He may well have known several barbers who have had heart attacks. OK. But remember that research showed that over 98% of people in car accidents were wearing underwear. Therefore, it is safer to ride in a car if you are not wearing underwear. The point? Correlation. These unfortunate barbers (I can see a new Wallace and Gromit film coming...) - what other factors might there have been? Location? Drinking habits? Eating habits? Other habits? Not using a fully adjustable chair for their customers - or not using the adjustment provided - which could lead to problems of posture? Were any of these considered in addition to the occupation? Also, how many other people that he knew had heart attacks? He looks to be of an age where heart attacks in contemporaries can be reasonable expected to be at a higher rate than in say 20-30s.
When looking at statistics (particularly government or hearsay ones), always remember the cars and the underwear....

Incidentally, I have only personally known three people who have had heart attacks. One was a lawyer (instantly fatal), another a taxi company owner (in his 70s) (also fatal), and another a printing engineer (who had three intensive care level attacks in three years, and then in the fourth had a stroke for a change - also survived). All the barbers I know (and the hairdressers) are quite healthy and I've not lost any - yet.