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Epidemiological studies investigate the overall risk of a kind of disease within specific groups of people . . Epidemiological studies investigate the overall risk of a kind of disease within specific - groups of people.

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  1. Epidemiological studies investigate the overall risk of a kind of disease within specific groups of people. Epidemiological studies investigate the overall risk of a kind of disease within specific - groups of people.

  2. Ecologic studies can’t prove cause and effect. If a detective keeps noticing a certain person near the scene of a series of burglaries, he may consider the person a suspect

  3. As in any kind of dietary investigation, to pack real scientific and statistical punch, cohort studies also need to be extremely large and participants followed over a long period of time.

  4. In vitro studies can’t tell us if an anti-cancer effect that happens at the cell level also occurs in the “real world” of the complex human body. They also can’t tell us how much we might have to eat to reap anti-cancer benefits, and they can only involve food components.

  5. Humans aren’t mice. While a surprising number of our biological processes may be similar - especially the cancer process - many things that happen in mice don’t happen the same way in humans, and vice versa.

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