Essentially, the drug edits your gene to be like the "population of people in the world that have a genetic mutation that conveys a massive advantage. They have a mutation in their PCSK9 gene, which means they don't produce the PCSK9 protein." We are still a few years away from this miracle drug hitting the market, and there are still trials to be done, but this is a really big deal, not only because it's an assault on LDL cholesterol and therefore heart disease, but also because it's another example of our ability to see an advantageous mutation in a certain population, make a drug to mimic it, and knock more and more diseases off the list.
