Ph.D. · UC Davis · Nutrition Science

The Smallest Things
Make the Biggest
Difference®

Dr. Ray Haring brings the rigor of a research scientist and the warmth of a lifelong educator to one of the most powerful ideas in human health — that the tiny choices, habits, and moments we overlook are the ones that change everything.

Endorsed by Tony Robbins Ken Blanchard John Gray, Ph.D. JAMA Editor-in-Chief American College of Sports Medicine
RH Dr. Ray Haring · Photo Coming
9 Books in the
Smallest Things® Series

What the World's Best-Selling Authors Say

Discover the miracles that can come out of life's simplicities. Dr. Haring will inspire you to be more, give more, take more chances, and ultimately be more alive.

Anthony Robbins
Author, Awaken the Giant Within

A little gem. Dr. Haring collects a gallery of profound thoughts and insights into the human character, creating a collage of very compelling stories and quotes. This book is worth your time.

Kenneth Blanchard, Ph.D.
Co-author, The One Minute Manager

A wonderful collection of positive and refreshing observations of life. An uplifting read for anyone searching for an oasis amidst life's many distractions.

John Gray, Ph.D.
Author, Men Are From Mars, Women Are From Venus
The Philosophy

Why the Small Things
Are Everything

Most of us are waiting for the big break, the big change, the big moment. Dr. Haring spent decades in the laboratory and classroom discovering a different truth: the outcomes that matter most are shaped by the things we barely notice.

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Grounded in Science

Ph.D.-level research in nutrition and physiological chemistry — translated into wisdom you can actually use.

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Applied to Real Life

Health, relationships, finances, happiness — the same principle operates everywhere. Small inputs. Big outcomes.

Accessible to Everyone

No jargon. No pretense. Ray's gift is making the complex feel obvious — and the obvious feel profound.

I took a two-minute break to watch seagulls drink water and it was like they were levitating. We all have the power to focus. If you can appreciate nature — the change of the seasons, all the wonderful things in the world — it adds a lot to life.
— Dr. Ray Haring · Sacramento Magazine
RH Photo Coming Soon
About Dr. Ray

A Scientist Who
Speaks to the Soul

Dr. Raymond V. Haring earned his Ph.D. in Nutrition Science from the University of California, Davis — one of the world's foremost institutions in nutritional science — under the mentorship of Dr. Richard A. Freedland, one of the great researchers of his generation.

For decades, Ray has occupied a rare intersection: rigorous scientific training paired with an extraordinary gift for communication. He has delivered over 300 hours of live televised instruction, keynoted for the Young Presidents' Organization, taught university nutrition at the highest levels, and spoken to audiences from corporate boardrooms to cruise ship lecture halls.

His nine-book series — The Smallest Things Make the Biggest Difference® — distills a lifetime of research, teaching, and observation into a philosophy that changes how people see their daily lives.

Ph.D., Nutrition Science, UC Davis
Faculty, California State University, Sacramento
Governor's Council on Physical Fitness
SECC TV Educator Award — 3 consecutive years
CSU Meritorious Teaching Award
UC Berkeley Faculty Teaching Symposium
Screen Actors Guild member
Author of 9 published books
The Book Series

Nine Books.
One Powerful Idea.

Each volume in The Smallest Things Make the Biggest Difference® series explores how the tiniest forces in life shape the biggest outcomes — in your health, your relationships, your work, and your joy.

The Smallest Things Make the Biggest Difference®
FLAGSHIP — The Original

The Smallest Things Make the Biggest Difference®

Endorsed by Tony Robbins, Ken Blanchard, and John Gray. The book that started a movement.

Smart Weight Loss — Change Your Mind, Change Your Body
ACSM Endorsed

Smart Weight Loss

Co-published and endorsed by the American College of Sports Medicine after rigorous vetting by leading MDs and Ph.D.s.

Shattering Myths & Mysteries of Alcohol
JAMA Endorsed

Shattering Myths & Mysteries of Alcohol

Endorsed by Dr. George Lundberg, Editor-in-Chief of the Journal of the American Medical Association.

Change Your Thoughts — Change Your World

Change Your Thoughts — Change Your World

The mental and emotional dimensions of the Smallest Things philosophy — how thought shapes reality.

Live Your Life With Passion

Live Your Life With Passion

What does it mean to live fully? Ray explores the small daily choices that unlock a larger life.

Unleash the Genius Within + 3 More

Plus Four More Titles

Unleash the Genius Within, Design Your Life, Create Simple Miracles, and Enjoy Life's Greatest Treasures — the complete series.

Live & On-Screen

Experience Ray
in His Element

Ray comes alive in front of an audience. Whether you watch him on YouTube, invite him to your stage, or join him at sea — the experience is the same: science made human, complexity made clear.

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YouTube Channel

Short, powerful videos drawing from a lifetime of research. New episodes on health, wellness, habits, and the science of small things.

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Keynote Speaking

Ray has spoken to corporate audiences, academic institutions, and the Young Presidents' Organization. He tailors every talk to your audience.

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Cruise Ship Lectures

An experienced cruise speaker — Ray brings enrichment lectures on health, wellness, and nutrition science to audiences at sea worldwide.

Watch on YouTube → Inquire About Speaking
✦ Today's Thought from Dr. Ray ✦
"Think positive. Begin by replacing negative thoughts with positive thoughts. It sounds like a cliché, but the difference between thinking 'I can' and 'I can't' is so huge that I'm just awed by the concept."
— Dr. Ray Haring, Ph.D.

A Smallest Thing,
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