“Heritability describes the extent to which phenotypic differences between individuals can be explained by genetic differences in a particular population with that population’s mix of genetic and environmental influences at that time.”

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“Neighborhoods with high fentanyl and other opiate prescription rates tend to be more rural, suggesting that this epidemic should not be seen as an “urban problem” as prior drug problems have often been viewed.”

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“…a theory in science is …a logical construct of how we think something works, generally agreed upon by scientists and always in agreement with the available observations.”

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“But theories are abstract, after all, so it’s easy for people to get tricked into thinking that because something is based on theory, it could very likely be wrong or is debatable in the same way that a social issue is debatable. This is incorrect. Almost all the accepted theories that we use in the physical and biological sciences are not open to different interpretations depending on someone’s opinion, internal beliefs, gut feelings, or lobbying. In the science world, two and two make four. To change or modify a theory, as Einstein’s theories modified Newton’s, takes tremendous effort and a huge weight of experimental evidence.”