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Martin Moore-Ede
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THE LIGHT DOCTOR: Using Light to Boost Health, Improve Sleep, and Live Longer Paperback – June 17, 2024

by Dr. Martin Moore-Ede (Author)
4.7 4.7 out of 5 stars 44 ratings
#1 Best Seller in Interior Lighting Design
See all formats and editions
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"This book terrified me, in the best way. Dr. Moore-Ede is doing cutting-edge work to change the way we think about light and how it affects us." - Penguin Life

"I was so impressed with his detailed yet thoroughly comprehensible explanations and expert advice! I’ll definitely be changing some of my lightbulbs ASAP!" – Simon Element

The light we see is as important for our health as the food we eat, the water we drink, and the air we breathe. For most of human existence, our ancestors lived with the natural 24-hour light-dark cycle, spending each day in natural daylight and sleeping in the dark at night. But since the widespread introduction of electric light, more than 90% of our time is spent indoors, under unhealthful and human-unfriendly electric light, which disrupts our circadian clocks and greatly increases the risk of cancer, obesity, diabetes, heart disease, and hundreds of other diseases.

Today’s LED fixtures, light bulbs, and screens are designed to produce cheap light with little regard for human health. Like DDT and asbestos, they are dangerously flawed technologies. THE LIGHT DOCTOR reveals extensive scientific evidence establishing the risks of blue-rich artificial light at night. Furthermore, it provides the practical information you need to counteract these risks at home, and in workplaces, schools, hospitals, and senior care facilities.

"I had no idea that artificial lights posed so many health risks, beyond the disruption of sleep. And Dr. Moore-Ede is clearly the leading authority on this topic." – Spark

"As someone who sits under fluorescent office lights all week, it made me question my life choices! The author does terrific job." – Tarcher Perigree

Here is how to find and install healthy light bulbs and fixtures for both residential and commercial spaces, how to obtain the lights you need for evening and night use versus daytime, and how to obtain energy-efficient light that is also safe and healthy. You will also learn which outdoor lights to install to avoid harmful effects on wildlife, another inadvertent consequence of the LED revolution.
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  1. Print length
    282 pages
  2. Language
    English
  3. Publication date
    June 17, 2024
  4. Dimensions
    5.5 x 0.64 x 8.5 inches
  5. ISBN-13
    979-8990686908
  6. See all details
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From the Publisher

Earth's lights from space

We take the light switch on the wall for granted.

As a society we are quite unaware of the devastating effects that today’s LED and fluorescent lights can have on our health and well-being.

THE LIGHT DOCTOR helps you become a smart and aware user of electric light.

LED lights

LED light fixtures

Classroom of kids

Education can empower you.

This book will help you understand the dangers of the lights you currently use.

Thoughtful action can save you.

This book will guide you on selecting lighting for your home that protects and boosts your health.

You can make a difference.

This book will help you advocate for healthy circadian lighting in your workplace, schools, hospitals, and senior living facilities.

Editorial Reviews

About the Author

For over 40 years, Dr. Martin Moore-Ede has been a leading expert on circadian clocks and their regulation by light. As a professor at Harvard Medical School (1975 - 1998), he led the team that located the suprachiasmatic nucleus (SCN), the biological clock in the human brain that controls the timing of sleep and wake. and showed how circadian clocks are disrupted by light at night. As founder and CEO of the global consulting firm CIRCADIAN(R) he pioneered technologies to help people safely adapt to working around the clock. His best-selling books "The Clocks that Time Us" and "The Twenty-Four Hour Society" are based on this work.To address his clients' growing concerns about the harmful effects of conventional fluorescent and LED lighting, Dr Moore-Ede in 2010 founded the Circadian Light Research Center. His discovery of the precise blue light wavelengths that are needed during the day but are harmful at night enabled the development of the first healthy white circadian lighting that automatically switches between blue-rich light during the day to entrain circadian rhythms, and zero blue light at night. Because of these inventions it is now possible to spectrally engineer light to reduce the risk of numerous diseases caused by circadian disruption, including diabetes, heart disease, and cancer. After proving the effectiveness of this healthy lighting, the IP was licensed to major lighting companies and acquired by Korrus to scale up the delivery of healthy lighting to the world.Dr. Moore-Ede graduated with a First-Class Honors degree in Physiology from the University of London and received his medical degrees from Guy's Hospital Medical School, and his Ph.D. in Physiology from Harvard University. Dr. Moore-Ede holds multiple patents on assessing and mitigating circadian disruption and fatigue, and on circadian lighting systems

Product details

  • ASIN ‏ : ‎ B0D54SHWS4
  • Publisher ‏ : ‎ CIRCADIAN Books (June 17, 2024)
  • Language ‏ : ‎ English
  • Paperback ‏ : ‎ 282 pages
  • ISBN-13 ‏ : ‎ 979-8990686908
  • Item Weight ‏ : ‎ 15.7 ounces
  • Dimensions ‏ : ‎ 5.5 x 0.64 x 8.5 inches
  • Customer Reviews:
    4.7 4.7 out of 5 stars 44 ratings

About the author

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Martin Moore-Ede

Martin Moore-Ede

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For over 40 years, Dr. Martin Moore-Ede has been a leading expert on circadian clocks and their regulation by light, and a pioneer in applying this science to healthy lighting and living.

As a professor at Harvard Medical School (1975 – 1998), he led the team that located the suprachiasmatic nucleus (SCN), the biological clock in the human brain that controls the timing of sleep and wake. and showed how circadian clocks are disrupted by light at night. As founder and CEO of the global consulting firm CIRCADIAN® he pioneered technologies to help people safely adapt to working around the clock. His previous best-selling books “The Clocks That Time Us” and “The Twenty-Four Hour Society” are based on this work.

To address his clients’ growing concerns about the harmful effects of conventional fluorescent and LED lighting, Dr. Moore-Ede founded the Circadian Light Research Center in 2010. His discovery of the precise blue light wavelengths that are needed during the day but are harmful at night enabled the development of the first healthy white circadian lighting that automatically switches between blue-rich light during the day to entrain circadian rhythms, and zero blue light at night. This circadian lighting reduces the risk of numerous diseases caused by circadian disruption, including diabetes, heart disease, and cancer. The IP was licensed to major lighting companies and acquired by Korrus to scale up the delivery of healthy lighting to the world.

Dr. Moore-Ede graduated with a First-Class Honors degree in Physiology from the University of London and received his medical degrees from Guy’s Hospital Medical School, and his Ph.D. in Physiology from Harvard University. He holds multiple patents on assessing and mitigating circadian disruption and fatigue, and on circadian lighting systems.

Customer reviews

4.7 out of 5 stars
44 global ratings

Customers say

Customers find the book informative, insightful, and actionable. They say it offers compelling evidence as to why we need to be mindful of our light. Readers also describe the writing quality as well-written and extremely well presented.

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8 customers mention "Information quality"8 positive0 negative

Customers find the book informative, insightful, and well-presented. They say it offers compelling evidence as to why we need to be mindful of our light. Readers also appreciate the extensive manual of useful advice as to how they can optimize their lighting.

"...research with real-world applications, making this book not only informative but also actionable for anyone looking to improve their health and well-..." Read more

"...The most recent studies are all included - it's carefully researched and extremely well presented." Read more

"...for us to read the book, he also provides us with an extensive manual of useful advice as to how we can optimize our health through the proper use..." Read more

"...Well written and much needed information that will help you live a healthier life!" Read more

3 customers mention "Writing quality"3 positive0 negative

Customers find the book well-written and carefully researched. They also say the information is presented extremely well.

"...The book is well-written, meticulously researched, and easy to digest, making it accessible to readers from all backgrounds...." Read more

"...studies are all included - it's carefully researched and extremely well presented." Read more

"...Well written and much needed information that will help you live a healthier life!" Read more

Care About Your Health? This is REQUIRED READING!
5 out of 5 stars
Care About Your Health? This is REQUIRED READING!
This new book is dedicated to a seemingly benign topic, the critical importance of "light" by medical specialist Martin Moore. Don't be fooled! This book and its topic are significant assets to readers who wish to advance their knowledge to enhance their HEALTH.Before I elaborate on why 'The Light Doctor' is a must-read for everyone, I want to draw attention to its exploration of a thought-provoking societal issue. Dr. Moore skillfully presents an ongoing conflict between our long-term environmental health and the potential risks to our short-term physical health due to light-related factors. His insights will undoubtedly enlighten us and raise awareness about the complex relationship between our energy, light consumption, and physical health needs.Now, I want to be clear that "The Light Doctor" isn't just theoretical academic pop-science literature. It has a MAJOR practical component, and it does so directly to me. I am a Sleep Health specialist and work with people who are having nagging sleep troubles (that some anti-depressants and zolpidem won't fix) repair them, and with people who want to enhance their energy for work and home using my Sleep Fitness and Burnout Training programs.To support my efforts, I released 'Sleep Fitness: The Top Ten Sleep Facts that Matter' here on Amazon around the same time as the 'The Light Doctor' release. I wish I had read Moore's contribution before my release, as I may have included a dedicated chapter on light. Regardless, my first reason for the 5-star Review is that this dedicated book gave me a mix of history, science recaps, and modern context, which I know will INFORM my direct clients I work with who have 'Circadian-" related sleep challenges, which are sleep issues related to our body's natural sleep-wake cycle. Thank you, Dr. Moore, for this alone!Now, FOR THE REST OF US, we have long known (or remember a bit) the early health and psychology model called "Maslow's Hierarchy of Needs." I bring it up here to remind us of the core bottom health features that make up the PRIMARY FOUNDATION of all human health, both physical and mental: breathing (new book this past year you can check out), food (we all know the importance of diet on our health and illness chances), water (same), shelter (self-evident), clothing (evolving), & sleep (where I come in).After reading "The Light Doctor," I am 100% convinced that "LIGHT" is a missing baseline core element informing various health issues. Most of us didn't have a clue Light was such an enormously influential (and researched) player on issues including #OBESITY (a modern epidemic in the US), #DIABETES (a disease we thought only to do with sugar…wrong!), #HEARTDISEASE (we thought only to do with fat consumption…wrong!), and certain #CANCERS.'The Light Doctor' is a crucial addition to the health education resources often missing for those striving to maintain and improve our health. This book is a game-changer, filling the gap in our understanding of the profound impact of light on our health. For this reason, 'The Light Doctor' is a must-read for everyone, empowering you with the knowledge to make informed decisions about your health.Care About Your Health? This is REQUIRED READING!
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Top reviews from the United States

Willie Duggan
5.0 out of 5 stars A must read for anyone concerned about their health, and their light environment
Reviewed in the United States on September 4, 2024
Verified Purchase
“The Light Doctor” by Martin Moore-Ede is a must-read for anyone concerned about their health and the growing array of environmental toxins that affect us today. As a lighting designer, I've been aware of the relationship between light and health for many years, but the depth of insight that Martin provides in this book is truly eye-opening.

Martin Moore-Ede has been a pivotal figure in lighting research for decades. While working at Harvard in the 1970s and 1980s, he was part of the team that discovered the suprachiasmatic nucleus (SCN) — the human biological clock that regulates our circadian rhythms. His expertise and experience shine throughout this book, revealing just how deeply artificial lighting affects our health in ways many of us have never imagined.

We live in an incredibly artificial world today, a stark contrast from how humans evolved over millions of years. Since the invention of the light bulb in 1870 and the electrification showcased at the 1893 World’s Fair, our environment has been fundamentally transformed. Martin shows how these changes have come at a cost to our health. He highlights the many ways artificial light has been linked to serious health issues, including cardiovascular problems, cancers, mental health disorders, and more.

Moore-Ede provides a comprehensive understanding of how both artificial and natural light impact our health. He sheds light on the fact that, while light is essential for our well-being, modern artificial lighting practices are fundamentally misaligned with our biological needs. The book is well-written, meticulously researched, and easy to digest, making it accessible to readers from all backgrounds.
What makes “The Light Doctor” particularly valuable is its practical approach. Martin doesn’t just highlight the problems; he also offers possible solutions for mitigating the adverse effects of artificial light on our health. He combines scientific research with real-world applications, making this book not only informative but also actionable for anyone looking to improve their health and well-being.

In a world where artificial lighting surrounds us at all times, “The Light Doctor” is an essential guide to understanding the profound impact of light on our health. It's a book that challenges us to rethink our relationship with light and encourages us to make more informed choices. Martin Moore-Ede’s work is an important contribution to both the fields of health and lighting, and it is a must-read for anyone who wants to understand the true power of light.
7 people found this helpful
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Douglas Arion
5.0 out of 5 stars The very best reference on the impact of lighting on health and the environment
Reviewed in the United States on August 13, 2024
Verified Purchase
This is the most current information and research on the effects of lighting - both good and bad - with guidelines for how to provide good lighting that supports health and the environment while saving energy. The most recent studies are all included - it's carefully researched and extremely well presented.
5 people found this helpful
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P. Dowdall
5.0 out of 5 stars Enlightenment about Light
Reviewed in the United States on June 28, 2024
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When we ordinarily think about health, we usually don't pay much attention to light. In this book, Martin Moore-Ede explains to us why this is a huge mistake. Too much artificial light in particular can pose significant health risks, he tells us. He explains to us in a readily accessible prose the science behind his conclusions. If that were not sufficient for us to read the book, he also provides us with an extensive manual of useful advice as to how we can optimize our health through the proper use of light. A great combination of the theoretical and the practical.
2 people found this helpful
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Refik Telhan
5.0 out of 5 stars This book is enlightening us in many ways.
Reviewed in the United States on July 14, 2024
Verified Purchase
As a 40-year veteran of the printing industry, I have always been closely related with the creation of viewing conditions that provide the best perception of color for all observers. But now, Mr. Moode-Ede is showing us other faces of the lighting conditions which needs to be taken into account. We now see that designing indoor lighting for all use cases and for all times of the day requires extreme care if we are to lead healthy lives.
One person found this helpful
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Wesley
5.0 out of 5 stars Best book available on the topic of light
Reviewed in the United States on July 9, 2024
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I've read the book as it came out on substack, and am excited to have it available as a book to recommend to patients. I think the information in this book is just as important as any book available on nutrition or exercise. Well written and much needed information that will help you live a healthier life!
2 people found this helpful
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Heather Witzig
4.0 out of 5 stars Helped me learn how to implement better indoor circadian lighting
Reviewed in the United States on September 10, 2024
Verified Purchase
I really enjoyed this book and was able to take information it gave me to purchase a few new circadian bulbs and lights for my house to improve my health and longevity. A lot of eye opening information about the detriments of indoor (and outdoor) lighting.
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Michelle J.
5.0 out of 5 stars People need to know this! Groundbreaking research.
Reviewed in the United States on July 1, 2024
Verified Purchase
More people need to know about the side effects of artificial light at night! Our bodies evolved or were designed for natural bright sunlight during the day, and darkness at night. We have ignored our biology for too long and mankind is now seeing tragic health consequences. Dr. Moore-Ede was involved in identifying the circadian clock in humans and has done amazing amounts of research on circadian rhythm health and the effects of exposing our bodies to light at both the correct times of day and incorrect times. This information is crucial to human health at a root cause level and is a must read for medical professionals and anyone wanting to help improve overall health. As Morpheus in the Matrix offered up a red pill to wake up Neo and change his entire perspective on life, once you start researching circadian rhythm health and the effects of natural sunlight on the body, you'll never see light in the same way. Read the book.

I found this book after stumbling across related research by Dr. Jack Kruse, and my health has improved so much after implementing steps to optimize my natural circadian rhythm. I used to be an extreme night owl. I now wake up with sunlight and am sleepy by 9pm! I feel so much better overall! Given the fact that both my parents died from cancer related conditions, I am thrilled to be taking steps to improve my health without the need of a prescription. I am truly grateful for doctors like Dr. Martin Moore-Ede that are getting this research into books for the general public.
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Top reviews from other countries

Jef Haymen
5.0 out of 5 stars A work of monumental importance
Reviewed in Canada on July 11, 2024
Verified Purchase
As a 30+ year veteran in the lighting industry I have experienced massive technical breakthroughs that have dramatically increased lighting output per watt. At the same time I have seen many poor decisions made to sacrifice light quality in favor of saving the most capital. This disdain for what is easily our most important sense never failed to surprise me. Now with the remarkable and tireless effort by Dr. Moore-Ede we have a document that stands as a testament to just how important natural lighting is and how deleterious poor artificial lighting can be to ones health and longevity. Conversely, thoughtful artificial lighting can become a health and productivity boon that makes saving a few more watts seem silly.

Bravo to The Light Doctor!

Jeff H.
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Prashanth Makaram
5.0 out of 5 stars A very relevant book that can change the future of lighting
Reviewed in Germany on November 6, 2024
Verified Purchase
For a company that is developing quantum dot LEDs not only for plants but also human centric lighting, this books has been super relevant. This book provides all the relevant studies and scientific reasons on why current LEDs are bad and we need to change the status quo. This has bolstered our commitment further to bring high quality light indoor. I have even bought the book for the entire team to read and get excited. Thanks a lot for writing this very relevant book.
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Neville Wright
5.0 out of 5 stars Illuminating a neglected health issue.
Reviewed in the United Kingdom on September 21, 2024
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This book comes with the weight of serious science rather than at the whim of some celebrity.
It deals with health impacts that make the latest dietary fad insignificant. Why haven't we heard more about this when the hard scientific research has been done and the results known for years?
Everyone not just night workers needs to know about the health effects positive as well as negative of correct circadian conscious lighting.
For those of us living a long way from the equator getting lighting right is more complicated but intelligent circadian illumination holds the promise of a positive impact on day length related conditions such as Seasonal Affective Disorder as well as the numerous other benefits set out by Professor More Ede.
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Sandy Abram
5.0 out of 5 stars Mastering Your Health Starts With Mastering Your Light
Reviewed in Australia on August 5, 2024
Verified Purchase
A must read!! Every time we flick the LED light switch on at night, we are also flicking the switch on, and exposing ourselves and our family to numerous adverse health affects from metabolic disorders and diabetes, to heart disease, to poor sleep (which increases all cause mortality) to certain cancers.

The Light Doctor literally shines a light on how our body works, the impact LED lights have on us and our biological rhythms and what we can do about it at home and in our work places.

Dr. Moore-Ede is "the" expert in this field and does an incredible job at presenting complex processes in easy to understand language. He provides the answers and solutions on how we can all protect ourselves and our family and backs everything up with the latest research and science. There is also a great use of color images throughout the book so if you're going to read one book about artificial light, this is it!!
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Sandy Abram
5.0 out of 5 stars Mastering Your Health Starts With Mastering Your Light
Reviewed in Australia on August 5, 2024
A must read!! Every time we flick the LED light switch on at night, we are also flicking the switch on, and exposing ourselves and our family to numerous adverse health affects from metabolic disorders and diabetes, to heart disease, to poor sleep (which increases all cause mortality) to certain cancers.

The Light Doctor literally shines a light on how our body works, the impact LED lights have on us and our biological rhythms and what we can do about it at home and in our work places.

Dr. Moore-Ede is "the" expert in this field and does an incredible job at presenting complex processes in easy to understand language. He provides the answers and solutions on how we can all protect ourselves and our family and backs everything up with the latest research and science. There is also a great use of color images throughout the book so if you're going to read one book about artificial light, this is it!!
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Roger Sutherland
5.0 out of 5 stars Enlightening and Terrifying
Reviewed in Australia on August 2, 2024
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This is a book that not only everyone should read but a book that everyone could read and easily understand.
I read the first parts of this book on Substack originally and was thrilled when Martin released it in paperback.

I have interviewed Martin on my podcast (A Healthy Shift Podcast - Episode 136) and he is very informative and lovely to chat to.

The book steps through everything light and its impacts on human health and then goes into the research that has been undertaken to develop true Circadian Lighting.
Everything in the book is well researched and referenced.

As I said earlier anyone could read this book and fully understand everything in it and I highly recommend people do.

This is a great book that is both Enlightening and Terrifying.
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