Michael is currently Director of the Hypertension Units and of the Endocrine Hypertension Research Centre within the University of Queensland Frazer Institute at Greenslopes and Princess Alexandra Hospitals in Brisbane. He has over 30 years clinical research experience in pathogenesis and management of hypertension and especially of endocrine varieties including primary aldosteronism, renovascular hypertension, pheochromocytoma and familial hyperkalemic hypertension. Working with mentor Richard Gordon, he helped to demonstrate that primary aldosteronism is at least 10 times more common than previously thought, and is the commonest specifically treatable and potentially curable form of hypertension. Subsequent studies have involved determining genetic bases for primary aldosteronism, examining non-blood pressure dependent effects of aldosterone excess, improving methods of detection, diagnostic workup and management of primary aldosteronism, exploring the pathogenesis and genetics of other salt sensitive forms of hypertension (including familial hyperkalemic hypertension) and investigating how dietary potassium lowers blood pressure.