Psychologists have historically overstated the role of psychological factors in physical illness, a notion famously exploited by the tobacco industry. For example, Hans Eysenck, funded by Big Tobacco, claimed that ‘negative’ personality traits, not smoking, caused heart disease and cancer. His discredited research even suggested anti-smokers died younger. While psychological stress can impact health, its role is almost always secondary to more direct, non-psychological factors like poverty, diet, and lifestyle. This reductionist and individuocentric view, which blames the individual for being sick, distracts from the true societal and economic roots of poor health.