High levels of gambling are associated with a 37% increase in mortality, according to a new study, which reveals that the top 1% of gamblers surveyed spent 58% of their income and one in ten are spending 8% on the habit. Published today [4 Feb] in Nature Human Behavior, the study led by Dr. Naomi Muggleton, of Oxford’s Department of Social Policy and Intervention, highlights the financial damage, negative lifestyles and health of gamblers, who can move from ‘social’ to high-level gambling in months.