belief systems

Research shows that religious belief is good for the individual and for society. However, Steven Pinker recently claimed that belief in an afterlife, particularly by evangelicals, is a "malignant delusion." This is a rare misstep from a public intellectual who really ought to know better.
Given widely-varying belief systems about medicine and health, it shouldn't be surprising that these also exist when it comes to what causes cancer. But surprisingly, cancer belief systems don't significantly impact lifestyle behavior.