In 2003, a behavioral immunologist studying patterns of chronic diseases noticed something strange.
People who almost never got sick without constant exhaustion, without endless colds, shared an unusual habit:
They talked to themselves out loud. In supermarkets. While driving.
A viral X thread claims that a 2003 behavioral-immunology observation linked people who talk to themselves out loud with better resistance to illness. The post reads like self-improvement folklore rather than a sourced scientific result: no study, researcher, or citation is provided in the visible metadata, so treat it as an anecdotal prompt about self-talk rather than evidence-based health advice.
