Critical Reasoning (CR) | Re: QOTD: A researcher discovered that people who have low levels

The researcher's conclusion is that the immune system protects against mental illness as well as against physical disease.

This conclusion is based on the following experimental data: people who have low levels of immune-system activity tend to score much lower on tests of mental health than do people with normal or high immune-system activity.

So the people with lower levels of immune-system activity tend to score lower on mental health tests. Does that mean that the immune systemprotects against
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