I studied for my PhD at the Institute of Psychiatry in London and did post-doctoral studies at the Royal Postgraduate Medical School, London.
I trained in neuropharmacology, physiology and psychology and like to work at the interface of these disciplines. For my PhD (Institute of Psychiatry, London) I investigated the function of brain dopamine receptors and during my post-doctoral studies (Royal Postgraduate Medical School) I developed an interest in the biochemistry of stress. In 1989 I joined the University of Westminster where I became a founder member of the interdisciplinary Psychophysiology and Stress Research Group ( PSRG).
My recent research has focused upon the role and regulation of the cortisol awakening response (the CAR) with studies examining relationships with aging, cognitive function, attachment style, seasonality and health. I am particularly interested in the ways light and season can affect health and performance. I have published over 115 peer-reviewed papers, five books, and 30 book chapters or reviews.