The Exquisite Machine: The New Science of the Heart by Sian E. Harding
My rating: 5 of 5 stars
Release date: September 20, 2022
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In this book, a renowned heart researcher presents an overview of what we know (and don’t know) about the human heart: i.e. what can go wrong with it and why, how [and to what degree] it fixes itself, and what modern medicine can do to treat or replace a damaged heart. I learned the most from the middle of the book – i.e. chapters five through seven. Chapter five explores plasticity in the heart, plasticity is a concept that most people associate with the brain and its ability to rewire itself to contend with damage or changing needs. The other two chapters look at how the heart can be damaged, specifically as a result of emotional experience. A “broken heart” isn’t necessarily a misnomer.
Chapter four is also intriguing but takes the win for “which one of these things is not like the others.” It deals with big data, though not in a general sense but rather as it applies to gaining a better understanding of the heart. This chapter discusses a common challenge of medical research: that it’s hard to come up with large enough study groups of patients with close enough to the same problem to draw solid conclusions. Four also discusses the potential of the vast amount of data that exists, e.g. Fitbit heart rate figures.
The last couple chapters deal largely with the future of heart repair through genetic / biological means (as opposed to via mechanical hearts and technologies, which are dealt with in Chapter nine.) This is where the book gets to be a challenging read for a readership of non-experts. It gets technical and jargon- / acronym-heavy.
The heart is an astounding entity, relentlessly at work, rarely giving up despite regularly being subjected to intense shocks, an organ tied to our whole being in a way that humans have always felt – if only just begun to understand. If you’re interested in learning more about this magnificent organ, check this book out.
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