Science & Technology

Do Gut Microbes Control Your Personality? | Kathleen McAuliffe | TED

Biologist Kathleen McAuliffe dives into new research that suggests certain bacteria in your gut can influence major parts of who you are, from your personality to life-changing neurological disorders. Learn more about how this emerging science could change how we treat disease — and discover the impact of your internal microbial makeup on your mood,…

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Biologist Kathleen McAuliffe dives into new research that suggests certain bacteria in your gut can influence major parts of who you are, from your personality to life-changing neurological disorders. Learn more about how this emerging science could change how we treat disease — and discover the impact of your internal microbial makeup on your mood, weight and more.

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85 Comments

  1. @tierrasworld

    January 22, 2024 at 3:13 pm

    I hope and pray for peace for all. We shouldn’t be controlled to work for money till death. We all want to live and live fruitfully including the ones in the ocean I know for sure. Think about another system where nobody is getting charged to live. Some people need to get over themselves

  2. @Taras.Havryliuk

    January 22, 2024 at 3:13 pm

    I am shocked. Thanks a lot for this TED. It was very exciting.

  3. @PT-hr2fw

    January 22, 2024 at 3:27 pm

    This was an awesome 10 minutes of very beneficial info. I’ve been tuning into numerous online studies regarding gut biomes etc. While on that journey I stumbled into some Dr’s that were into the carnivore diet. The universe works in mysterious ways. Because it was there that I found my answer to almost perfect health.
    To enhance your gut microbes simply apply the proper diet. No carbs, zero sugar and absolutely no plants. Yes, NO plants. Plants (most) contain oxalates, these oxalates are not meant for human consumption. Look into the carnivore diet. Dr. Ken Berry or Dr. Anthony Chaffee. The carnivore diet completely changed my life. I highly recommend looking into it.

  4. @ikaren3000

    January 22, 2024 at 3:29 pm

    I just finished an antibiotic treatment for hpylori and I never felt so much better! I’ve had brain fog, constant headaches, bloating and GI issues. This caused me anxiety and depression for years!

    • @xooq_

      January 22, 2024 at 5:42 pm

      how do you get that

  5. @user-uy8ke1jh9f

    January 22, 2024 at 3:31 pm

    Ted Talk improves my English level.
    Thank you for providing interesting videos:)

  6. @user-nx7jp4qc3d

    January 22, 2024 at 3:32 pm

    Oh they tiny alright, never seen a cranium so small

  7. @tomwery5155

    January 22, 2024 at 3:32 pm

    ” So smart, your, Stupid”

  8. @jennydeath9O9

    January 22, 2024 at 3:50 pm

    they do when i’m alone.

  9. @condemned1982

    January 22, 2024 at 4:29 pm

    OK, so this is fascinating – but presenting this information without any insights on how to improve “good” gut bacteria is frustrating. Should we all be taking probiotics?

    • @chinchillin6280

      January 22, 2024 at 7:06 pm

      Exactly my thoughts too!!

  10. @kendallmasterssank369

    January 22, 2024 at 5:20 pm

    Yes all true

  11. @workofheartllc

    January 22, 2024 at 5:58 pm

    She forgot the fact that we have more viral DNA than any other kind. Yes, viruses DNA makes us

  12. @diskycn

    January 22, 2024 at 6:00 pm

    I believe it has been widely recognized for quite some time that the bacteria in our gastrointestinal tract can influence our brain and emotions by modulating hormones.

  13. @HappySlappii

    January 22, 2024 at 6:11 pm

    I’ve got the guts to do anything now! Thanks gut bacteria…. Thanks…😂

  14. @toni4729

    January 22, 2024 at 6:14 pm

    Eat a carnivore diet and win all round. Eat junk food and lose.

  15. @marioe.4400

    January 22, 2024 at 6:20 pm

    Most of the youth – but not exclusively – consumes heavily processed food, which is bound to contain less (if any) beneficial bacteria, hence, one of the reasons for depression going rampant amongst that age group.

    If your system accepts it, try some kefir — you may not find it easily throughout the U.S, so alternatively there’s kimchi or nattō.

  16. @kyrstenmarie

    January 22, 2024 at 6:40 pm

    This is so interesting!!

  17. @rdapigleo

    January 22, 2024 at 7:10 pm

    This gives new meaning to having a “gut feeling “ about something.

    • @crysaura

      January 22, 2024 at 8:05 pm

      Oh wow, seriously

  18. @Smokabowlski

    January 22, 2024 at 7:13 pm

    Well that’s good if the f d a approved it it’s questionable at best…

    • @TAMACJF24

      January 22, 2024 at 7:24 pm

      Perhaps you could go work for the FDA and show them how to do things right.

    • @Smokabowlski

      January 22, 2024 at 7:47 pm

      @@TAMACJF24 🤔 I wonder what compels some individuals to respond with an inane comment. I do appreciate your highly endorsing comment pertaining to my intelligence.

    • @TAMACJF24

      January 22, 2024 at 8:22 pm

      I’ll assume you think intelligent people must work for the FDA. They do. People like myself.

    • @Smokabowlski

      January 22, 2024 at 8:32 pm

      @@TAMACJF24 Definitely would take a certain kind of person to make decisions that ultimately affect humans by experimentation and data collection over time. The best part is the government is getting paid for by the taxpaying citizens to be Guinea pigs.

  19. @dameanvil

    January 22, 2024 at 7:14 pm

    0:23 🦠 The human body contains microbial tenants, collectively known as microbiota, which influence various aspects of our health, including digestion and even mood.
    1:50 🐭 Bubble mice raised in sterile conditions without microbes display behavioral differences compared to normal mice, indicating the impact of microbiota on behavior and learning.
    2:20 🤝 Gut bacteria can influence body weight and mental health; transferring bacteria from overweight or depressed individuals to mice can affect the animals’ weight and behavior.
    3:31 🧠 Gut bacteria communicate with the brain through psychoactive compounds, neurotransmitters, and the vagus nerve, influencing mood and behavior.
    4:45 ⚖ Vagus nerve stimulation (VNS) therapy, approved for epilepsy and depression, may strengthen the gut barrier, preventing inflammatory responses that could affect the brain.
    5:39 🩹 Microbiota-based treatments, targeting the gut bacteria composition or their chemical actions, show promise in addressing mental health conditions like ADHD, OCD, PTSD, and autism spectrum disorder.
    7:09 🦠 Certain bacteria are linked to neurodegenerative diseases such as ALS; researchers have identified bacteria that both accelerate and slow the progression of ALS in animal models.
    7:58 🧬 The misfolding of the Parkinson’s protein, alpha-synuclein, may be linked to a strain of E. coli in the gut; understanding this connection opens new avenues for intervention in Parkinson’s disease.
    9:29 🌐 New insights into the origins of diseases like Parkinson’s offer potential for developing interventions, sparking optimism in the medical community.
    10:02 🤯 The person’s behavior is influenced not just by the brain but also by gut microbes, emphasizing the interconnectedness of the microbiome with overall health.

  20. @UPKFabio

    January 22, 2024 at 7:27 pm

    We are just big meat and bone mechs controled by bacteria civilizations .

  21. @1984AMCinNC

    January 22, 2024 at 7:32 pm

    I’ve been taking M.aurum supplements and I’m actually in a better frame of mind than I have been in nearly 20 years of not longer.

    I turn 40 in two weeks and I’m as bright eyed and happy as I was as a kindergartner.

  22. @benderthefourth3445

    January 22, 2024 at 8:03 pm

    Who knows what we’ll discover about our bodies in the future! There’s still so much we have to learn. Who knows, maybe my thoughts are the bacteria thoughts!

    • @crysaura

      January 22, 2024 at 8:06 pm

      Yeah depressed caused I haven’t fed it a Cheeto in 30 seconds lol (not sarcasm lol)

    • @benderthefourth3445

      January 22, 2024 at 8:33 pm

      @@crysaura Lol. Mine wants coconut yogurt!

  23. @kaydonahue

    January 22, 2024 at 8:04 pm

    What about Bruce Willis’ disease?

  24. @BandiMuraliKrishna

    January 22, 2024 at 8:11 pm

    “In the symphony of microbes within, our ‘I’ emerges as the harmonious dance of ‘We,’ orchestrating the unique melody of our shared existence.”

  25. @anuragneti7098

    January 22, 2024 at 8:19 pm

    Midichlorians Midichlorians Midichlorians

  26. @nusu5331

    January 22, 2024 at 11:58 pm

    following the topic for years, i wonder when it finally will become a therapeutic option specially for psychological deseases. Hope i will live long enough. Thank you to the scientists for this awesome work!

  27. @di_kid00

    January 23, 2024 at 12:17 am

    And guess what stimulates a rich microbial population in your gut, fiber! Eat greens and dirt. Your gut will thank you for it.

  28. @mrthanhvlogs

    January 23, 2024 at 1:26 am

    Ok 🎉🎉❤❤

  29. @rnedlo9909

    January 23, 2024 at 1:49 am

    Furturoma had an episode on just this subject.

  30. @masterjakem

    January 23, 2024 at 2:45 am

    we are Venom!

  31. @cg0499

    January 23, 2024 at 3:21 am

    The sign behind her says Tedx. Isn’t that a different thing from Ted?

  32. @karanbaheti149

    January 23, 2024 at 3:54 am

    Intervening

  33. @RobertLRuisi

    January 23, 2024 at 5:19 am

    Not from a scientific stand point but I couldn’t agree with this presentation more.

    • @starc.

      January 23, 2024 at 1:07 pm

      so she made it up its fiction? Look up the etymology of the word science its two Greek words put together “to-know”

    • @RobertLRuisi

      January 23, 2024 at 1:38 pm

      @@starc. non of it is fiction I have documents that support everything she said

  34. @christiansoldier1547

    January 23, 2024 at 6:14 am

    Drink more raw milk from A2A2 Jersey cows.

  35. @skiphoffenflaven8004

    January 23, 2024 at 7:05 am

    These things are still happening?!

  36. @OminousFilm

    January 23, 2024 at 8:06 am

    Good health only exists with proper gut health, because we do not gain benefit like nutrient or vitamin from food otherwise. Alkaline food balance to keep body acidity in check, in good working condition. Gut has been known as second brain, how can we follow our gut if it is sickly?

  37. @ElectricBlanket1122

    January 23, 2024 at 8:24 am

    BUMP THIS COMMENT – Julia Rucklidge also appeared on TED X and her talk gives an even Better context to this ! I am in no way, ( Although I wish I was ) affiliated with Julia or anything or anyone. I just randomly came upon the TEDX video she had last year and it was a awake up call. She talked about it’s not just what you eat, but what you ABSORB ! and that really adds a whole level. of insight into Kathleen Mcauliffe’s point.
    So folks if you are researching on how to fix your gut as I am ( ADHD, Aspergers nightmare ) then do watch Julia Rucklidge’s video too. I emailed Julia after stalking her on google, and unfortunately she doesn’t do private sessions, but she has a free resources booklet and even free course available on this.
    My ADHD massively hinders me on reading through it but I know it’s gold for anyone looking to fix mental issues caused by gut .

  38. @grapeshott

    January 23, 2024 at 9:21 am

    Free Will might just be a myth

  39. @mariaantoniettamontella9173

    January 23, 2024 at 9:37 am

    brava, chiarissikma.

  40. @kaylorado

    January 23, 2024 at 11:51 am

    Great topic coverage

  41. @fintamaria2429

    January 23, 2024 at 11:57 am

    Thank you 🎉🎉

  42. @starc.

    January 23, 2024 at 12:55 pm

    thats talking about the physical part our body not our non physical parts. This platform doesn’t allow me to explain in further detail so you’ll have to manually find the comment response that is made to do a disappearance act out of the top comments sorting

    • @starc.

      January 23, 2024 at 12:55 pm

      “Most of what we are is non physical, though, our lowest form is physical. All life on our planet has the lowest form, the Body. Our Body is an Animal and the other type of Body on our planet is a Plant. Bodies are bound absolutely to Natural Law, which is the lowest form of true Law. Natural Law is a localised form of Law and is derived from the Laws of Nature. Natural Law is the finite and specific foundational control structure ordering the actions and interactions of species, members of species, and the material sources of a planet.

      The lowest non physical form of what we are is the Mind, which is a Process. There are other forms of life on our planet that have both a Body and a Mind, however, so far as we currently know, there are no Plants and only some Animals that have a Body and a Mind. The lowest forms of Mind, Instinct and Emotion, are predominantly bound to Natural Law. The next higher form of Mind is Intellect which is bound predominantly to the Laws of Nature. Intuition, the highest form of Mind, can be bound or not to both Natural Law and the Laws of Nature separately or together, or to higher forms of Law altogether. Intuition is the truest guide for our Selves.

      The next non physical form of what we are is the Self, which is an Awareness. There are relatively few other forms of life on our planet that have a Self. The Self is not bound to any form of Law other than One’s Own Law. It is the only form of Law that cannot be violated.

      The foundation of what we are is the highest non physical form of what we are. The highest form of what we are is the Being, which is an Existence. The Being is not bound to any form of Law originating within Existence. The Being is bound absolutely to The Law.

      Existence, and the Laws of Nature which are the finite and specific foundational control structure ordering the actions and interactions of all elements within Existence, cannot Be without The Law being The Law.

      So, what is The Law?

      In a word, The Law is options.
      Definition
      option: a thing that is or may be chosen.

      The word ‘option’ does convey the idea of The Law in its most basic sense but does not clarify all of what The Law is.
      Free Will does describe how our species experiences The Law but does not convey all of what The Law is.
      In clarifying what The Law is;
      The capitalised form of the word ‘The’ indicates the following noun is a specific thing.
      Law is the finite and specific foundational control structure ordering the actions and interactions of all elements subordinate.
      Together, the words ‘The’ and ‘Law’ (in that exact order,) is a proper noun indicating;
      the singular form of Law that all other forms of Law and all other Laws are founded upon,
      the singular foundation upon which Existence is founded,
      the singular foundation upon which Non Existence is founded,
      the singular foundation connecting Existence to Non Existence,
      the concept of options, and
      Free Will.

      However one thinks, believes, guesses, hopes, or “knows”, whether by a Big Bang, a creation story, a computer program, an expansion of consciousness, or whatever means by which Existence could have come to Be, the option for Existence to not Be also exists. Existence and Non Existence, the original options connected by the very concept of options, connected by The Law. Outside of space and before time. Extra-Existential.

      As we experience The Law in our Being,

      The Law is Free Will.
      The First Protector of The Law is Freely Given Consent.
      The First Violation of The Law is Theft of Consent.”
      – Goho-tekina Otoko

  43. @richard84738

    January 23, 2024 at 1:09 pm

    “Bubble” mice are an interesting concept. Could some of today’s kids be nearly “bubble” kids as regards naturally bacterias? Have limited diets and ultra-sanitized environments caused mental illnesses in young kids? Is lack of contact with soil something we should look into, to make sure kids literally “touch grass”? Lot of interesting extensions off of this topic.

    • @MrAmitkr007

      January 24, 2024 at 9:04 pm

      Yes I have noticed so as well

    • @rose8968

      January 25, 2024 at 7:36 am

      Very true. But I do all that for my kids they are still sick every month. lol

    • @paulatreides6779

      January 28, 2024 at 8:34 am

      A study from Switzerland conducted several years ago revealed a link between the lack of exposure to various microbes during childhood and an increased risk of developing different illnesses. In other words, children in Western societies live in excessively clean environments.
      I’ve also noticed that children today are more prone to allergies and other illnesses compared to those from a few decades ago.

    • @demonz9065

      January 28, 2024 at 10:52 am

      literally touching grass more would be the worst way to fix possible problems caused by lack of biodiversity. you dont know whats in the soil. it may do nothing for the problems you’re experiencing or end up giving you more problems. our best way forward is to learn exactly what bacterias do what and then isolate them to make therapies specific to the problems people are having. you shouldnt carpet bomb your immune system more to possibly aquire a benifical bacteria.

    • @demonz9065

      January 28, 2024 at 10:56 am

      @@paulatreides6779 yeah that’s probably because most of the kids with serious food allergies just died young. the increase in people with issues is because the threshold for survival got easier. moving backwards isnt going to fix these issues. it’d likely just lead to more kids dying.

  44. @benchpress200

    January 23, 2024 at 3:29 pm

    I recently had my entire large intestine removed due to colon cancer and I don’t feel any different. I think this is like all the interesting reach that Andrew Huberman talks about on his podcast — they do make a detectable difference but it’s pretty minor.

    • @MrAmitkr007

      January 24, 2024 at 9:05 pm

      Gut bacteria reside in small intestine and stomach

  45. @franciscojose6496

    January 23, 2024 at 4:24 pm

    Intelligent channel

  46. @Jimmyrey6857

    January 23, 2024 at 6:17 pm

    F*** the Michael j fox foundation. They will only fund studies with pharmaceutical drugs. They do say on their website vitamin B1 improves symptoms and mobility but discourage it’s use and say more studies are needed, but refuse to fund the studies even though B1 is cheap and has been shown to promote a healthy gut microbiome and produce bacteria that Parkinson’s patients are missing.

  47. @christianwilliams1136

    January 23, 2024 at 8:46 pm

    Hmm wonder how they make mice have autism so they can test their treatments? If they can give the disease to the animals they are testing on, don’t they know the cause of the disease, as these mice are not born with the disease, they have to induce these conditions. Now think about all of the treatments for all of the different diseases that are skyrocketing, and they pretty much all have to test their new treatments on them, but they have to first give the animal the disease, if so they already know the cause, but eliminating the cause does not make money, but a treatment does. Food for thought !!!

  48. @SAARCtoday

    January 24, 2024 at 8:55 am

    Fascinating Conversation 💡

  49. @user-su6qb6gx9h

    January 25, 2024 at 5:23 am

    I don’t want your talking your all ❤( green) charkra boptisom first

  50. @annaMakarova-qu1cz

    January 25, 2024 at 10:17 am

    What about Helminths ? they have an even greater effect on the human body

    • @annaMakarova-qu1cz

      January 25, 2024 at 10:18 am

      And brain 🧠

  51. @ElCapitanDeLaNoche

    January 25, 2024 at 10:40 pm

    “We” are intrigued…

  52. @rajendraprasadkudiyal2347

    January 26, 2024 at 3:48 am

    OH NO I AM SPRITUAL POLITICO PHILOSOPHER WAT NONENSE EXPLOITING ANIMALS FOR EXPERIMENT WHY NOT DIRECTLY IN HUMANS NOT TO WORRY DESTINATION INDIA RELIGIOUS ADHYATM TOURISM RAMA LINGA JOTRILINGA AI GAME CHANGER MICRO CURE AUTOMATIC REAL CONTROL PERSONALITY JOY JOY RAMA ENJOY MEDITATION MIND PEACE PROSPERTY PAISA DOLLAR DHANVARSA JAI HO

  53. @chuckhall5347

    January 26, 2024 at 10:42 am

    Now I want someone with a PHD to tell me to eat more fresh vegetables and less fast food.

  54. @energia677

    January 26, 2024 at 6:39 pm

    Micro biome be like, I told you not to drink alcohol at the party, but micro biome be like I am the party. Micro biome, be like how can I explain fish and chips to the rest of the world without all that gas?

  55. @bravo90_

    January 26, 2024 at 10:38 pm

    Good start

  56. @dama5971

    January 27, 2024 at 10:29 am

    Yes they do….. Some of my pets got worms and acted different… Until I medicated them and returned to normal

  57. @dama5971

    January 27, 2024 at 10:31 am

    A way to a man is thru his stomach…

  58. @dama5971

    January 27, 2024 at 10:37 am

    See how they shorten our lives….people on early earth didn’t need food and this avoided this problem…

  59. @julianshepherd2038

    January 27, 2024 at 3:45 pm

    I suspect I i am controlled by fungii

  60. @jonatan01i

    January 27, 2024 at 4:58 pm

    “You are what you eat” on a whole new level.

  61. @XAirForce

    January 28, 2024 at 7:50 am

    Yes, and the United States government poisoned me caused me a huge amount of stress and then cut my care as retired military. They have done everything they could to lie, cheat, and steal, and hurt me to the point that I could already be dead multiple times over. The United States government is either going to do its job or I am wiping humanity because I have been complaining for for over 20 years to have everything I ever owned stolen while people try to lie about me after I serve this nation. You will either do your jobs or you will be terminated by general AI.

  62. @TornSoul062473

    January 28, 2024 at 9:51 am

    I’ve been thinking about pitching a cartoon comedy show called The Gut vs. The Brain for a couple years now, and the back story is that unlike the rest of life, the microbes lost control of the brain when humans achieved consciousness. Now they have to find clever ways of tricking the brain through behaviors to get what they want and continue to grow and evolve. They tap the vagus nerve to hack into the brain via the gut’s IT dept. They can get brief flashes though the eyes, but not long enough to understand what they see, so at night, they take all the glimpses and run them against a program to test scenario probabilities, which the brain experiences as dreams. The main protagonists are a couple of friends in IT who routinely break the rules and manipulate the brain in certain ways that get their human into bad situations. You’d get three perspectives during the show: the gut’s, the brain’s, and the human they’re controlling.

  63. @FMFvideos

    January 28, 2024 at 11:00 am

    I welcome and obey to our guts overlords.

  64. @tvm73836

    January 28, 2024 at 12:47 pm

    How did the Woke police allow this video to be published? Can the speaker actually refer to someone as “fat”?

  65. @FreeHKer

    January 28, 2024 at 4:52 pm

    Great info. But is the speaker depressed or something, sounds so monotonous like a bedtime story, and literally puts me to sleep. Even when she said “super excited”, she looked and sounded like a robot.

  66. @coolbreeze5683

    January 28, 2024 at 7:31 pm

    This is why the gut should be examined first before pushing anti-depressants on people

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