Researchers claim they have found why humans, but not other animals, are prone to heart attacks.  News reports of this discovery are confusing because they errantly infer a gene mutation (CMAH gene), which eliminates internal synthesis of a sugar-like molecule called Neu5Gc (aka sialic acid), is what makes humans vulnerable to chronic inflammation that can lead to cancer and heart attacks.

Actually the inactivation of the CMAH gene via a gene mutation, which occurred long ago in human history, eliminated endogenous production of this toxic Neu5Gc molecule in humans.  That would represent a health-positive gene mutation, not a negative health mutation as some confused news reports maintain. The initial scientific discovery is published in the July 22, 2019 issue of the Proceedings of the National Academy of Sciences.