Urban Janlert of Umea University Browse All Authors Famous Quotes by Urban Janlert of Umea University Even if an increased risk of 30 percent is rather low for an individual, people should think of it, but the main problem is the public health aspect – even if the individual risk is not alarming, the high number of people working long hours means that in the whole population a huge number of strokes will occur. Urban Janlert of Umea University health