Since taking up a lectureship in Health Psychology at UEL in 1989, Mark has maintained his ongoing interest in the biopsychosocial modelling of health and illness. Latterly, he has extended his research activity to encompass psychometric work on topics in mental health, specifically: the public understanding of depression; mortality awareness; radicalism; and scientifically unsubstantiated beliefs. Throughout his career he has also maintained research activity on individual differences in rebelliousness within the context of Reversal Theory, collaborating periodically with the theory’s progenitor, Professor Michael Apter, and latterly in work ongoing as a predictor of resistance to health persuasion messages. An additional strand of his health psychology research has been investigation of social cognition models as predictors of alcohol consumption, in particular risky, single-occasion drinking. This work was conducted in conjunction with postdoctoral researcher Dr Vered Murgraff and resulted in the publication of a randomised control trial as funded by the Alcohol Education and Research Council: a brief evidence-based intervention targeting motivational and volitional antecedents specified by the theory of planned behaviour and implementation intention theory. This work on alcohol consumption continues with the recent submission (in 2017) of an external research grant bid to develop an app-based alcohol reduction intervention for military veterans in conjunction with colleagues at UCL and Kings College.