Natural Causes: an epidemic of wellness, the certainty of dying, and killing ourselves to live longer

Prolific political activist and investigative journalist Barbara Ehrenreich has here taken on the--in her view misguided--culture of obsessive "fitness" and keeping people alive at all costs. She challenges some of the evidence (or lack thereof) and precepts of preventive medicine, mindfulness, and the belief we have control over our bodies. But she also ponders some interesting developments in understanding cell biology--especially those we consider dysfunctional, like cancer--such as the scientific quandary of why our immune systems sometimes turn against us. The review from the New York Times sums it up well:
"Nothing in modern life prepares us for the leaving of it. We treat aging as an outrage or, worse, as a sin. In our addiction to betterment, we’ve replaced “health” — an absence of sickness — with the amorphous “wellness” and a flurry of overtesting, fad diets and pointless “alternative” treatments."
At age 76, Ehrenreich has decided that she is "old enough to die." That means no longer subjecting herself to unnecessary exams, tests, and treatments.  “Not only do I reject the torment of a medicalized death, but I refuse to accept a medicalized life.”
With a PhD in cellular immunology, she is certainly qualified to offer an informed opinion on these matters.
Additional reviews from The Guardian, the Washington Post, The Atlantic and Kirkus.