The<unk>  is a medical hypothesis which holds that<unk>  (and high cholesterol, when the more global term "reverse epidemiology" is used) may, counterintuitively, be protective and associated with greater survival in certain groups of people, such as very elderly individuals or those with certain chronic diseases. It further postulates that normal to low body mass index or normal values of cholesterol may be detrimental and associated with higher mortality in asymptomatic people. The hypothesis is controversial and is disputed by many scientists.
Obesity paradox
Australian paradox
Hispanic paradox
Mexican paradox
French paradox
Low birth-weight paradox
Obesity-associated morbidity
Outcomes paradox