100 Ways to Change Your Life: The Science of Leveling Up Health, Happiness, Relationships & Success – Actionable Tools for Personal Growth and Mental Well-Being

100 Ways to Change Your Life: The Science of Leveling Up Health, Happiness, Relationships & Success – Actionable Tools for Personal Growth and Mental Well-Being

by Liz Moody

4.5 (258)

4.5 stars from 258 reviews

Published by HarperCollins PublishersPublished 2023-01-01

$10.9942% off peak

Last checked: Jul 1, 2026

Price history: $1.99 $18.99

While not the biggest discount we've seen for this book, it's still a great deal and we recommend grabbing it before price returns to its normal range.

Price range: $1.99 $18.99

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Fans of these authors will like this...

  • James Clear
  • Cal Newport
  • Angela Duckworth

Fans of these books will like this...

  • Atomic Habits
  • Deep Work
  • The Power of Habit

Perfect for you if...

  • You want practical, science-backed advice without the self-help platitudes or lengthy case studies.
  • You're drawn to books that let you pick and choose what matters to you rather than follow a rigid programme.
  • You trust recommendations from real experts (psychologists, doctors, researchers) more than generic motivation.

Maybe not for you if...

  • You prefer deep narrative and storytelling over quick-hit tips and lists.
  • You're sceptical of 'self-improvement' books and find the personal growth genre overwrought.
  • You want transformative life philosophy rather than tactical, bite-sized solutions.

About this book

From the creator of The Liz Moody Podcast, this science-backed guide addresses practical questions about daily habits for happiness, longevity, physical health, charisma, friendships, and managing burnout and anxiety. 100 Ways to Change Your Life translates Moody's years of interviewing leading doctors, scientists, and thinkers into a choose-your-own-adventure-style personal growth book. Readers can work through it sequentially, use it as a daily tip resource, or jump to sections addressing specific challenges. The book covers mental health, careers, relationships, confidence, and physical health across 100 parts, each offering actionable tools and mindset-shifting ideas. Key topics include success frameworks and temptation bundling for goal achievement, concrete solutions for burnout and resilience, neuroscience approaches to rewiring neural pathways, advice from gastroenterologists on digestive health, and research on longevity and energy optimization. The format emphasizes easy-to-digest, immediately implementable tips designed to support transformation across multiple life areas.

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Price History

Kindle price over time. Green zones = periods when the book was free.

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Free$9.49$18.99Apr '23Jul '24Aug '25Jun '26
$1.99$18.99

Currently on sale at $10.99 — 42% off peak. Price has dropped 9 times over the last 3 years. Goes on sale roughly every 102 days. Typically stays discounted for 3 days.

Sales Rank

Amazon sales rank: lower number = better selling book. #1 is the bestseller.

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#1,475#303,664#605,852Jul '23Apr '24Jul '24May '26

Currently around #73K in the Kindle store — a steady mid-list seller.

Rating & Reviews

Purple line = star rating over time. Blue area = total review count growth.

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4.0★4.5★5.0★Nov '23Jan '24Jun '24Jun '26RatingReviews

Currently 4.5★ from 258 reviews

Gaining approximately 8 new reviews per month. Rating has dipped slightly from 5.0 to 4.5.

Sale Prediction

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Free$9.49$18.99Apr '23Jul '24Aug '25Jun '26PredictedJun '26

Actual Predicted

This book is currently discounted at $10.99. It typically returns to around $18.99.

Prices shown in USD from Amazon US. We continuously pull new data to improve tracking. If dates look old, it usually means there has been no significant change since the last data point.

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