Professor of Clinical Pharmacology at the Department of Medicine, Solna since 1997.
Paul Hjemdahl's research has mainly focused on the cardiovascular system, with an emphasis on stress, the function of the sympathetic nervous system, and the mechanisms of thrombosis. Sympathetic nerves are a part of the autonomic nervous system which lies outside direct voluntary control. Blood platelets have a central role in normal coagulation and in thrombosis.
He is interested in the significance of adrenaline and other mediators in the effects of stress. He is studying how drugs affect disease mechanisms and the risk of thrombosis in healthy subjects as well as in patients with diabetes, high blood pressure and coronary artery disease. Platelet activation may be a link between stress and myocardial infarction.