Shurely shave mishtake

The Times reports today (“Close shaves beat death by whisker“) that “men who do not shave every day are 30 per cent more likely to die of heart disease and nearly 70 per cent more likely to have a stroke”, according to a study by the University of Bristol. Apparently this is to do with the fact that men who don’t shave regularly tend to lead more dissolute lives in general. The article ends with the mysterious observation that “men with beards were excluded from the survey”. Are the University of Bristol going to conduct a separate study of bearded men’s propensity to heart disease and strokes, or should it be understood that all men with beards are either guaranteed never to suffer from these ailments or are all about to pop their clogs? I think we (or they) should be told.