The book turned out to be a disappointment. I feel the author's main goal was to hype how good it is to live longer, so we should increase research funding. And he might be right, but that does not make this book better.
The hype feels overblown in how far the research falls short of the promised picture.
I don't like how the book is written. Headings are confusing, it's hard to get the point of sections, stories are distracting, and there is little applicable knowledge.
A few things that stood out:
Chapter 1 summarises the current research on why we age. It's not DNA damage but a summary of nine factors. I found it insightful.
Chapter 4 says nine amino acids, saunas, ice baths, and fasting are good for you. It’s good to get another confirmation.
Chapter 5 goes into science and technicalities. I didn't find it as useful as it's not useful knowledge for most people.
Towards the end, the book discusses the consequences of longer lives on society. It's fun to think about in this context.