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From the authors of Biohacker's Handbook

The Resilient Being

Mastering the Biology of Stress & Resilience

The cover of The Resilient Being by Olli Sovijärvi, Teemu Arina and Siim Land

What challenges you makes you stronger, but only if you recover from it. This is the biology of stress and recovery, from a single cell up to the whole organism, and what actually builds resilience rather than draining it.

27 €+ VAT if applicable · 220 pages · 880 references · hardcover or e-book

Mastering HOLOLIFE

A phoenix rising from the ashes

Resilience is a virtue in times of turmoil, and biohacking has the potential to build it. It is the ability to recover quickly, and to build immunity against mental and physical ailments.

It comes from peak life experiences, from learning, and from profound realizations. It is not built overnight. It is built iteratively, over time, and a resilient being comes out of it stronger, wiser, healthier and more capable than before.

Resilience is an integral part of HOLOLIFE, from the Greek "holos" meaning whole or complete, which takes biohacking and personal development further by combining self-optimization with a mission to build a better world: improving yourself for your own benefit, for the people you serve, and for a positive global impact.

The HOLOLIFE framework, showing how resilience fits into whole-system human optimization

What readers say

Reviews from our store

Verified

Perfect book

Well made and very good material. I really love what you do.
Davide P. · Italy · 18 Sep 2025
Verified

Great Compendium

It is a very well curated guide. Full of interesting facts/figures/statistics and new insights. A longevity bible.
Anonymous · Netherlands · 10 Jan 2025

The book

An essential masterpiece for building lasting resilience

From the authors of Biohacker's Handbook comes the most ambitious, literate, illustrative and scientific review to date, combining the science of resilience with the science of longevity. Olli Sovijärvi, medical doctor from the University of Helsinki, science author and B.A. in Integral Theory, Teemu Arina, futurist and technologist, and Siim Land, eight-fold best-selling author, synthesize, summarize and illustrate how you can master the biology of resilience for a well-functioning body, from the level of a single cell up to the whole organism.

The book includes hundreds of illustrations backed by 880 scientific references, covering the sources of stress, the organ systems that regulate it, and the tools that measurably help.

The HOLOLIFE series explores how people adapt, thrive and extend healthspan against modern challenges. The Resilient Being is the first volume, and it deals with the mechanism underneath all of it: how stress is sensed, regulated and recovered from.

The book is also a piece of art

Every chapter is illustrated. The design carries the argument rather than decorating it.

  • An illustrated spread from The Resilient Being
220
pages
880
scientific references
3
authors

The index

What the book covers

  1. 01Introduction
  2. 02Authors
  3. 03Preface
  4. 04We are Holobionts
  5. 05Many Sources of Stress
  6. 06Stress Sensitivity
  7. 07Hormetic Stressors and Hormesis
  8. 08Oxidative Stress is Cell-Level Stress
  9. 09Organ Systems Involved in Stress Regulation
  10. 10Autonomic Nervous System
  11. 11The Endocannabinoid System
  12. 12Heat Alteration
  13. 13Chromotherapy & Photobiomodulation
  14. 14Adaptogens, Resilience, and Stress Management
  15. 15Stress Balancing and Lowering Supplements
  16. 16Oxidative Stress Lowering Supplements
  17. 17Technological Tools for Building Resilience
  18. 18Self-Care Methods
  19. 19Blood Biomarkers for Testing the Benefits of Heat Exposure
  20. 20Stress Surveys
  21. 21Heart Rate Variability (HRV) and Autonomic Nervous System Balance
  22. 22Measuring Oxidative Stress
  23. 23Gene Tests Assessing Physiological Stress Sensitivity
  24. 24Conclusion
The Resilient Being, photographed open

The authors

Who wrote it

Three authors, each covering a different part of the problem: the clinic, the technology and the practice.

  • Dr. Olli Sovijärvi, M.D.

    Dr. Olli Sovijärvi, M.D.

    Medical doctor and science author

    A medical doctor from the University of Helsinki, with a B.A. in Integral Theory, who moved from conventional practice into preventive and holistic medicine. He handles the physiology: how stress is sensed and regulated, what the evidence supports, and where the honest limits of it are.

  • Teemu Arina

    Teemu Arina

    Futurist and technologist

    A technologist, entrepreneur and speaker who has spent two decades on the boundary between people and machines. He covers measurement: heart rate variability, the tools that track recovery, and the judgement about which numbers are worth acting on.

  • Siim Land

    Siim Land

    Author and educator

    An eight-fold best-selling author who writes about metabolic health, fasting and hormesis for a general audience. He covers the practice: the protocols, the doses of stress that build capacity rather than drain it, and how to apply them in an ordinary week.

The HOLOLIFE series

Where this book sits

Published

  • The Resilient Being

    Mastering the Biology of Stress & Resilience

    Volume one, this book

  • The Vital Being

    Decoding the Mastery of Longevity & Vitality

    Volume two

Forthcoming

  • The Mindful Being

    Cultivating a Mind Primed for Growth & Adaptation

  • The Transcendent Being

    From Self-Optimization to Self-Actualization

Ordering The Resilient Being does not include the other books in the series. They are sold separately.

Get the book

Start building real resilience

The cover of The Resilient Being by Olli Sovijärvi, Teemu Arina and Siim Land

Details

  • Hardcover: 220 pages, 0.9 kg (2 lbs)
  • E-book format: PDF
  • 880 scientific references
  • Hundreds of illustrations
  • ISBN: 978-952724153-0 (hardcover)
Authors:
Olli Sovijärvi, Teemu Arina, Siim Land
Layout and illustrations:
Yasmin Manelius & Paula Karjalainen
Publisher:
HOLOLIFE Publishing OÜ

The Resilient Being · Hardcover

27 €

+ VAT if applicable. One payment, shipped from stock.

Buying three brings it to 16.20 € a copy.

Buy the hardcover

100% satisfaction guarantee. If you are unhappy with your purchase within 30 days you get your money back, excluding shipping costs, as long as the product is in its original condition.

All popular payment methods accepted, including credit cards and PayPal. In the EU, VAT is added at checkout according to your country of residence.

  • 100% secure payment
  • 24/7 support
  • Satisfaction guarantee
  • No AI used

Other ways to get this

The same book digitally, three copies at a discount, or the trilogy it belongs to.

E-book (PDF)

The Resilient Being e-book

19 €

+ VAT if applicable

The same book, 220 pages, delivered the moment you buy it.

  • Immediate download
  • Nothing to wait for
  • 880 scientific references
40% off

40% off · was 81 €

3x The Resilient Being

48.60 €

+ VAT if applicable

Three hardcovers at 16.20 € each. One to keep, two to hand on.

  • Three hardcovers
  • 16.20 € a copy
Most popular

45% off · was 130 €

The Sovereignty Trilogy

71.50 €

+ VAT if applicable

The Master Architecture of Human Resilience: this book plus two more, over 1300 pages in total.

  • The Resilient Being (Sovijärvi, Arina, Land)
  • Biohacker's Handbook (Sovijärvi, Arina, Halmetoja)
  • Longevity Leap (Siim Land)

Frequently asked

Questions people ask before buying

Hardcover or e-book?

The e-book is the same 220 pages as a PDF and arrives immediately. The hardcover is a 0.9 kg illustrated volume built to be kept and returned to. If you want to start reading now, take the e-book. If you want the object, take the hardcover.

What is the three-copy offer?

Three hardcovers for 48.60 € instead of 81 €, which is 16.20 € a copy and 40% off. It exists because this is the book people tend to buy for someone else once they have read it.

Is this written by AI?

No. The Resilient Being was written by three named authors, illustrated by named designers, and every claim in it is backed by an academic reference. There are 880 of them. The books popularize scientific insights and discoveries, they do not generate them.

Do I need the other HOLOLIFE books first?

No. The Resilient Being is the first volume in the series and it stands on its own. Ordering it does not include the other books, and they are sold separately.

What if I am not happy with it?

100% satisfaction guarantee. If you are unhappy with your purchase within 30 days you get your money back, excluding shipping costs, as long as the product is in its original condition.

Ready to build real resilience?

Get The Resilient Being