Sheldon noted that the study authors knew nothing about the diagnosis of the patients in the study, their cause of death or how those who were healthy and fainted directly compared to others who fainted but had a known disease or health problem.
While the study found an association between fainting in otherwise healthy people and future heart complications, it did not establish cause-and-effect.
To learn more about fainting, see the U.S. National Library of Medicine.
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