Boundless
I’ve been into biohacking and self-optimization for a few years now. It started pretty simply, with a basic course. Nothing groundbreaking. But it introduced one idea that really stuck with me:
I can take responsibility for how I feel, how my body behaves, and how I age.
That idea alone was enough to pull me in.
Down the biohacking rabbit hole
If you research biohacking for more than five minutes, you’ll inevitably run into Dave Asprey. His books, podcasts, website, YouTube, and of course, arguably his most famous contribution besides the word biohacking: Bulletproof coffee. All of it has been hugely influential for me over the years, and continues to be so.
But honestly? Biohacking can get overwhelming fast. Especially in the beginning.
There’s so much information. So many tools. So many things you could optimize. Knowing where to start, or what actually matters for you, is not obvious at all.
Somewhere along the way, I also found Ben Greenfield. Ex-bodybuilder, deep into health, performance, and longevity. When his book Boundless came out, I was genuinely excited.
It’s described as a complete guide to upgrading your brain, optimizing your body, and defying aging.
And yeah… it’s big.
Like, really big.
Like one of my friends pointed out, the book itself is actually a good workout tool, you can definitely do some solid goblet squats with it. But I think that suits a comprehensive guide like this.
Kindle vs physical
I originally bought Boundless on Kindle. That’s how I read almost everything. I like being able to take my books anywhere without hauling half a library with me, and on top of that a lot of my reading happens around the sauna, and books and water don’t tend to mix well.
But for this book? Physical is just better.
Boundless isn’t something you casually read once and forget. It’s a reference book. Something you flip through. Something you consult. Something you come back to when something in your life isn’t working quite right.
In 2021 I finally got the physical copy for my birthday, and in 2025 I actually got the physical copy of Boundless 2.0, the new and improved version. Both of them I got from my boss. And honestly, that made me appreciate the book(s) even more.
What I actually use it for
The book covers all the basics you’d expect:
how to eat better
how to sleep better
how to train smarter
how to recover faster
It goes into cold exposure, heat exposure, breathwork, supplements, nootropics, barefoot shoes, all that good stuff.
What I really like is that it summarizes a massive amount of information in a way that’s actually usable. If you already have a basic understanding of biohacking, this book helps you organize that knowledge and turn it into action.
I still regularly grab it to:
optimize something that’s not working in my life, or
explore something new I might want to try
The part I loved most
One of my favorite sections the first time around, and one I am getting into again in the new and improved version, is actually near the end: the routines and rituals that Ben uses and recommends, scheduled out on a day-by-day basis.
When you’re overwhelmed by possibilities (which I very quickly am), this is incredibly helpful. It takes all the options and turns them into something concrete you can actually start doing.
Final thoughts
Boundless was my introduction to some things that are now staples in my life (Qualia Mind, vivobarefoot barefoot shoes), and is my source of knowledge on all things biohacking to this day.
It’s a book I love, and I still use.
If you’re interested in health, performance, or longevity and want something comprehensive but practical, I genuinely recommend it.
And if you’ve read it already, I’m curious: what part did you actually use?
