“…Several human activities such as defecation are known to trigger aneurysmal subarachnoid hemorrhage (aSAH). 1 While car drivers may experience stress-induced blood pressure elevation as high as 20 mmHg, 2 there has been no scientific evidence that driving triggers aSAH. Nevertheless, information on the clinical picture of aSAH occurring while driving may be useful to emergency medicine physicians/ emergency medical services (EMSs), considering that drivers who experience aSAH may cause road traffic accidents (RTAs) and injury to themselves or others on the road.…”