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Dean Ornish, MD Profile
Dean Ornish, MD

@DeanOrnishMD

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536
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1,511
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Founder & President of the non-profit Preventive Medicine Research Institute. Eat Well, Move More, Stress Less, Love More.

Sausalito, CA
Joined September 2009
Don't wanna be here? Send us removal request.
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@DeanOrnishMD
Dean Ornish, MD
2 months
Published today in Alzheimer’s Research and Therapy: Our randomized controlled peer reviewed study showed that lifestyle medicine may significantly improve cognition and function in many patients with early-stage Alzheimer’s disease:    #UnDoAlzheimers
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@DeanOrnishMD
Dean Ornish, MD
2 years
Anne & I & a few of our colleagues met with HRH Prince Charles again today at his home in Highgrove & gave him an update on our work. I continue to be impressed by his vision & passion in having a positive impact on lifestyle medicine, climate change, & regenerative agriculture.
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@DeanOrnishMD
Dean Ornish, MD
6 years
Eat Well, Move More, Stress Less, Love More. #UnDoItBook is now available at
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@DeanOrnishMD
Dean Ornish, MD
5 years
Today is my 66th birthday--feeling so deeply grateful to be alive, healthy, able to do such meaningful work, and to share the love of my family and friends!
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@DeanOrnishMD
Dean Ornish, MD
5 years
The @gcmovie is now streaming on @netflix in 190 countries: #GameChangers
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@DeanOrnishMD
Dean Ornish, MD
5 years
. @gcmovie is now the best selling documentary ever on iTunes. Since awareness is the first step in healing, this is great news. #GameChangers
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@DeanOrnishMD
Dean Ornish, MD
4 years
How to enhance your immune system so that if you are exposed to #COVID19 , you can reduce the chances of getting sick—or at least mitigate the intensity of the disease and thus reduce the death rate. Coronavirus: The Other Half of the Equation
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@DeanOrnishMD
Dean Ornish, MD
5 years
U.S. News and World Report announced earlier today that their panel of experts rated the “Ornish Diet” as the “ #1 Best Heart-Healthy Diet” for the 9th time since they began rating diets in 2011:
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@DeanOrnishMD
Dean Ornish, MD
5 years
How much nutrition training does the average doctor get in 4 years of medical school? @1mDollarVegan
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@DeanOrnishMD
Dean Ornish, MD
2 months
For the 1st time, a randomized controlled clinical trial has demonstrated that an intensive lifestyle intervention, without drugs, may significantly improve cognition & function in many patients with mild cognitive impairment or early dementia due to Alzheimer’s disease.
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@DeanOrnishMD
Dean Ornish, MD
5 years
We are so very proud of Lucas, who graduated from the Bay School on Saturday! It really does go so fast....he's now 6'4"; I remember when I carried him under my arm. He'll be studying music and AI in NYC.
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@DeanOrnishMD
Dean Ornish, MD
3 years
#UnDoItBook is NOW available in paperback! Pick up your copy at your local bookstore or order online at:
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@DeanOrnishMD
Dean Ornish, MD
3 years
The TYPE of protein you consume is important, not just fats vs. carbs. In this study, substituting of animal protein with plant protein was associated with a lower risk of all‐cause mortality, cardiovascular disease mortality, and dementia mortality.
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@DeanOrnishMD
Dean Ornish, MD
5 years
My interview on @theellenshow is now available on YouTube: #MensHealthMonth #UndoItBook
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@DeanOrnishMD
Dean Ornish, MD
5 years
On Sept 16, forget everything you thought you knew about protein, strength, & performance. Tickets for @gcmovie on sale now: Thank you for having me: @JimCameron , @Schwarzenegger , @EyeOfJackieChan , @LewisHamilton , @DjokerNole , & @CP3 . #TheGameChangers
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@DeanOrnishMD
Dean Ornish, MD
1 year
People with or at high risk of cardiovascular disease who maintain a vegetarian diet for 6 months or longer show significant improvements in risk factors, including cholesterol, glycemic control, weight. Meta-analysis of randomized controlled trials shows:
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@DeanOrnishMD
Dean Ornish, MD
5 years
just published:
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@DeanOrnishMD
Dean Ornish, MD
4 years
Appreciate that a panel of experts at @usnews announced that "The Ornish Diet is #1 for Best Heart Healthy Diets" for the tenth year since they began rating diets in 2011.
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@DeanOrnishMD
Dean Ornish, MD
3 years
Life Force by @TonyRobbins is a visionary & extraordinary book that can help transform the quality & quantity of your life. 100% of sales goes to @FeedingAmerica & research for cancer, heart disease, & Alzheimer’s:
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@DeanOrnishMD
Dean Ornish, MD
3 years
Today is my 68th birthday. It’s an opportunity to re-mind myself of what matters most--I am grateful to everyone for your birthday wishes, which mean so much to me! The older I get, the more precious each day becomes. Each moment, really.
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@DeanOrnishMD
Dean Ornish, MD
1 month
I discussed the 1st randomized, controlled clinical trial showing that some Alzheimer's patients could experience cognitive improvement in 5 months with lifestyle medicine with @CNN ’s @drsanjaygupta . Watch "Dr. Sanjay Gupta Reports: The Last Alzheimer's Patient" 7/7 @ 8p ET.
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@DeanOrnishMD
Dean Ornish, MD
4 years
My colleagues & I are conducting the 1st randomized controlled trial to determine whether or not progression of early Alzheimer’s may be reversed by a comprehensive lifestyle medicine program, based on pilot data & studies of less-intensive interventions:
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@DeanOrnishMD
Dean Ornish, MD
5 years
Thank you @MercyForAnimals for featuring my new book #UnDoIt 💚 Now available at
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@DeanOrnishMD
Dean Ornish, MD
3 years
Rest in peace, beloved soul. Thank you for continuing to inspire me and so many others, shining a klieg light of wisdom in the darkness. I'll always treasure the day we spent together--your peaceful and beautiful presence truly embodied your teachings.
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@DeanOrnishMD
Dean Ornish, MD
4 years
Scientific evidence indicates that comprehensive lifestyle changes, including a whole foods plant-based diet, may play an important role in preventing or reversing the progression of dementia. Join me on Sept 11th to review the research: #PBNHC2020
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@DeanOrnishMD
Dean Ornish, MD
2 years
My True Love—
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@DeanOrnishMD
Dean Ornish, MD
6 years
father/daughter camping with Jazz--so sweet!
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@DeanOrnishMD
Dean Ornish, MD
1 year
When you meditate in the morning, it carries with you throughout the day— like hearing a song on the radio when you wake up and finding yourself humming it later in the afternoon.
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@DeanOrnishMD
Dean Ornish, MD
3 months
UnDo It!: How Simple Lifestyle Changes Can Reverse Most Chronic Diseases
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@DeanOrnishMD
Dean Ornish, MD
5 years
2 important studies showing that the diet I recommend increases blood flow and also decreases TMAO, a substance that causes heart disease. Many thanks to my friend, @drjkahn .
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@DeanOrnishMD
Dean Ornish, MD
6 years
"Eating You Alive" is a full-length documentary film on curing and preventing many chronic diseases with a plant-based diet that will be shown nationwide this Thursday featuring our work:
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@DeanOrnishMD
Dean Ornish, MD
5 years
Anne & I were grateful to receive the "Benjamin Spock Compassion in Medicine" award at the International Conference on Nutrition in Medicine at The George Washington University School of Medicine​ on Friday night.
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@DeanOrnishMD
Dean Ornish, MD
2 months
Together with top scientists, our randomized controlled study showed, for the first time, an intensive lifestyle intervention, without drugs, may improve cognition in early dementia due to #Alzheimer ’s, empowering people with new hope & new choices.
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@DeanOrnishMD
Dean Ornish, MD
11 months
I’m thrilled to share the launch of our first-ever *fully-virtual* Lifestyle Medicine program clinically proven to reverse heart disease without drugs or surgery, now reimbursed by Medicare! Visit to sign up.
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@DeanOrnishMD
Dean Ornish, MD
4 years
Thanks @Jeopardy 😃💚
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@DeanOrnishMD
Dean Ornish, MD
2 years
With the passing of beloved Queen Elizabeth, we look forward to the visionary leadership of King Charles III. He has long been a passionate advocate of lifestyle medicine, organic foods, sustainable farming & climate change.
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@DeanOrnishMD
Dean Ornish, MD
4 years
Of around 900,000 physicians in the United States, about 400,000 (45%) received a payment from a pharmaceutical or device manufacturer last year. (Source: new article in the Journal of the American Medical Association this week.)
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@DeanOrnishMD
Dean Ornish, MD
2 months
Watch now on @HBO - @CNN ’s The Whole Story with @andersoncooper highlights @drsanjaygupta 's groundbreaking report on the peer-reviewed study which demonstrates lifestyle medicine may significantly improve cognition in patients with mild cognitive impairment or early Alzheimer’s.
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@DeanOrnishMD
Dean Ornish, MD
5 years
Whether you’re planning a fully plant-based Thanksgiving dinner or just want to bring a delicious plant-based dish to provide some healthier choices for your family & friends, @gcmovie curated a list of mouth-watering recipes:
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@DeanOrnishMD
Dean Ornish, MD
3 years
#UnDoItBook  will be available in paperback on Jan 4, 2022! The 4 aspects of our lifestyle medicine program—eat well, move more, stress less, love more—have been proven to reverse the progression of a wide variety of chronic diseases.   Pre-order at
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@DeanOrnishMD
Dean Ornish, MD
5 years
For 5 mins, I had the experience of being cool to my 18 yr old son. His fav band is @vulfpeck & we went to their concert at the Greek Theater. These musicians are passionate advocates of a whole foods plant-based diet & they asked me to speak...
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@DeanOrnishMD
Dean Ornish, MD
3 years
Ultra-processed foods significantly increase the risk of cardiovascular disease in a dose-response way:
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@DeanOrnishMD
Dean Ornish, MD
3 years
Congratulations to the @gcmovie on the Game Changers Institute. A research, educational & advocacy platform that promotes plant-forward nutrition in order to help improve personal performance, advance public health, support social justice & protect the environment.
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@DeanOrnishMD
Dean Ornish, MD
5 years
Over the weekend I was lucky enough to be on a panel at the @PlantBasedExpo with @DrScottStoll , Dr T. Colin Campbell, & @nutrition_facts . If you missed us in NYC, join us at #PBNHC19 in Oakland, CA for 4 days in September:
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@DeanOrnishMD
Dean Ornish, MD
6 years
Anne & I had a wonderful podcast with @richroll , a #vegan ultramarathon elite athlete who was named “one of the 25 Fittest Guys in the World” by Men's Fitness. At age 51! Listen to our discussion at
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@DeanOrnishMD
Dean Ornish, MD
2 years
All carbs are not the same. Whole grains reduce your risk of coronary heart disease and other chronic illnesses whereas refined grains increase the risk. Here’s one more study finding this: @Medscape
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@DeanOrnishMD
Dean Ornish, MD
6 years
Honored to present at the American College of Lifestyle Medicine annual session last night with Drs. Michael Greger, Susan Benigas, T. Colin Campbell, and Caldwell Esselstyn, Jr. to a sold-out audience of 1,200 health care practitioners from 35 countries.
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@DeanOrnishMD
Dean Ornish, MD
1 year
Today I begin a new cycle around the sun. It's a transformative time, further clarifying what matters & brings meaning & what does not--& how I can continue to learn more, love more, serve more, & grow more in wisdom.
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@DeanOrnishMD
Dean Ornish, MD
1 year
An extraordinary, mind-bending book by the first woman tenured psychology professor at @Harvard . Highly recommended!
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@DeanOrnishMD
Dean Ornish, MD
6 years
Fight cancer, diabetes, heart disease, weight gain, and even the aging process itself with one simple, scientifically proven plan to reverse disease—as well as prevent and reduce symptoms. #UnDoItBook is now available:
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@DeanOrnishMD
Dean Ornish, MD
5 years
Eat Well, Move More, Stress Less, Love More. #UnDoItBook is now available at
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@DeanOrnishMD
Dean Ornish, MD
4 years
Here's part of my dialogue with @Oprah at the Chase Center in San Francisco on February 22nd. #Oprahs2020VisionTour
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@DeanOrnishMD
Dean Ornish, MD
5 years
We tend to think of chronic diseases as being fundamentally different from each other. But they’re really the same disease manifesting in different forms because they all share the same underlying biological mechanisms. @BlueZones
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@DeanOrnishMD
Dean Ornish, MD
1 month
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@DeanOrnishMD
Dean Ornish, MD
5 years
Interesting article:
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@DeanOrnishMD
Dean Ornish, MD
1 month
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@DeanOrnishMD
Dean Ornish, MD
2 years
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@DeanOrnishMD
Dean Ornish, MD
2 years
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@DeanOrnishMD
Dean Ornish, MD
4 years
Another reason to avoid keto/Paleo/Atkins diets:
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@DeanOrnishMD
Dean Ornish, MD
5 years
This new study shows conclusively that stents and bypass surgery don’t work in patients with stable heart disease, even when it’s severe (other than for left main coronary artery disease, which is relatively uncommon):
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@DeanOrnishMD
Dean Ornish, MD
2 months
Now available on @HBO : @CNN 's The Whole Story with @andersoncooper ft @drsanjaygupta 's report on the peer-reviewed study demonstrating lifestyle medicine may significantly improve cognition & function in patients with mild cognitive impairment or early Alzheimer’s disease.
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@DeanOrnishMD
Dean Ornish, MD
2 years
With @CoryBooker , who I love, who gave a powerful talk at The White House Conference on Hunger & Nutrition earlier today.
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@DeanOrnishMD
Dean Ornish, MD
6 years
Please join me on Friday morning, I'm speaking at the Harvard Medical School annual Lifestyle Medicine symposium, would love to see you there.
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@DeanOrnishMD
Dean Ornish, MD
2 months
Low-calorie sweetener called xylitol used in many reduced-sugar foods & products such as gum & toothpaste may be linked to nearly twice the risk of heart attacks, stroke & death in people who consume the highest levels of the sweetener, a new study found.
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@DeanOrnishMD
Dean Ornish, MD
4 years
What’s good for your heart is good for your brain. 🧠 Thank you to @womensalz for interviewing me in this weeks Ask the Expert article:
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@DeanOrnishMD
Dean Ornish, MD
5 years
Do you want a Game-Changing upgrade in your life? Join the plant-powered movement with elite athletes like Arnold Schwarzenegger and James Wilkes. Try the @gcmovie recipe for a Quinoa Bowl with Roasted Sweet Taters and Black Beans: #GameChangersMovie
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@DeanOrnishMD
Dean Ornish, MD
3 years
Does someone you know have mild cognitive impairment due to Alzheimer’s?
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@DeanOrnishMD
Dean Ornish, MD
6 years
Thanks for having me! 🙌
@DBelardoMD
Danielle Belardo, MD
6 years
Exciting news! My limited edition nutrition podcast is coming your way soon! Featuring my upcoming interviews with plant based physicians: @DeanOrnishMD @DrNealBarnard @michaelklapermd @Veg_MD @Drgarthdavis @DrOstfeld @DrMauricioGon @drjkahn and more! Stay tuned 😊👩🏼‍⚕️
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@DeanOrnishMD
Dean Ornish, MD
2 months
Thank you @GMA 🙏 Effects of Intensive Lifestyle Changes on the Progression of Mild Cognitive Impairment or Early Dementia due to Alzheimer’s Disease - A Randomized, Controlled Clinical Trial:
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@DeanOrnishMD
Dean Ornish, MD
2 months
Review the evidence of our recently published study that shows, for the first time, the impact of lifestyle medicine to improve cognition & function in patients with mild cognitive impairment or early dementia due to Alzheimer’s disease: #UnDoAlzheimers
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@DeanOrnishMD
Dean Ornish, MD
5 years
Have you been told you need to take drugs forever to lower your cholesterol level, blood sugar, or blood pressure? The lifestyle changes described in "UnDo It!" may enable your doctor to reduce or discontinue these medications. Here's how:
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@DeanOrnishMD
Dean Ornish, MD
3 years
A new report from three large-scale studies at Harvard documented that a whole foods plant-based diet significantly reduces your risk of having a stroke. What's good for your heart is good for your brain!
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@DeanOrnishMD
Dean Ornish, MD
2 years
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@DeanOrnishMD
Dean Ornish, MD
5 years
It’s time to eat like your health depends on it—because it does! Sign up for the FREE online @AFoodRevolution Summit, starting April 27th, to find out how from myself and 23 other experts:
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@DeanOrnishMD
Dean Ornish, MD
5 years
I'm grateful to @TheEllenShow for featuring #UnDoItBook on her show. Tune in today to watch my interview 💚
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@DeanOrnishMD
Dean Ornish, MD
2 months
A Testimonial from my Alzheimer's Progression Reversal Study: @nutrition_facts
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@DeanOrnishMD
Dean Ornish, MD
4 years
I am grateful to have been interviewed by @Oprah last Saturday onstage at her sold-out event at the Chase Center in San Francisco with 17,500 people.
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@DeanOrnishMD
Dean Ornish, MD
5 years
Today I had the honor of discussing the transformative power of lifestyle medicine and social prescribing with attendees at the 2nd International @SocialPrescrib2 Conference. #SocialPrescribing2019
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@DeanOrnishMD
Dean Ornish, MD
5 years
Consuming an unhealthy Western diet characterized by meat, hamburgers, chips, and soft drinks, may reduce the volume of the left hippocampus (the part of your brain that stores memories).
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@DeanOrnishMD
Dean Ornish, MD
6 years
"7 yrs ago my cardiologist handed me a card for hospice & told me that I had 3-4 months left to live. I read one of Dean's books which led me to a few more books. I did what he recommended & completely reversed my heart disease." - Bill Pearlman
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@DeanOrnishMD
Dean Ornish, MD
4 years
In this wonderful new book, "Healthy at Last," Eric Adams describes how a whole foods plant-based diet can reverse the progression of many chronic diseases in the African-American community: @healthyatlastbk
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@DeanOrnishMD
Dean Ornish, MD
3 years
My True Love— Today I celebrate your birth, which in so many ways has led to my re-birth—of my soul, of my heart, of my life…
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@DeanOrnishMD
Dean Ornish, MD
3 years
A panel of nutrition experts from U.S. News & World Report rated “The Ornish Diet is the #1 Heart-Healthy Diet” again for 2022 for the 11th time since they began rating diets in 2011!
@usnews
U.S. News & World Report
3 years
A heart-healthy diet can help you lose weight or lower cholesterol, blood pressure or triglycerides. #BestDiets
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