The Science of Why You Eat When You're Not Hungry–And How to Stop | Judson Brewer

Jan 8, 2024 Episode Page ↗
Overview

Dr. Judson Brewer, an addiction psychiatrist and neuroscientist, discusses the science of changing our relationship with food, focusing on overeating as a habit. He introduces methods like mapping habit loops, interrupting them with awareness, and finding "bigger, better offers" to foster unforced freedom of choice in eating.

At a Glance
24 Insights
1h 13m Duration
21 Topics
7 Concepts

Deep Dive Analysis

Introduction to Changing Relationship with Food

Dr. Jud's Transition from Smoking to Eating Habits

Evolutionary Basis of Eating When Not Hungry

Habit vs. Addiction in the Context of Food

Anxiety and Overeating as Habit Loops

Why Diets and Willpower Often Fail

Dr. Jud's View on Intuitive Eating

Approach to Weight Loss and Clinical Obesity

Evidence Supporting Dr. Jud's Approach

Part 1: Mapping Your Eating Habit Loops

Part 2: Interrupting Habit Loops with Awareness

The Hunger Test for Calibrating Awareness

Satisfaction vs. Contentment and the Pleasure Plateau

Practicalities of Mindful Eating Techniques

Mindful Eating in Social Situations

Learning from Mindless Eating: The Disenchantment Database

Self-Judgment and Its Impact on Eating Habits

Part 3: Identifying a Bigger, Better Offer

Unforced Freedom of Choice and Eating Gummy Worms

Addressing Trauma and Dissociation from the Body

Social Determinants of Health and Food Access

Hedonic Hunger

This refers to eating driven by pleasure or emotion, rather than physiological need. It's distinct from homeostatic hunger, which is the body's signal for actual caloric intake.

Habit vs. Addiction

A habit is an automatic behavior, often helpful for survival, allowing us to 'set and forget' actions. Addiction is at the far end of the habit spectrum, defined by continued use despite adverse consequences, indicating a more severe and entrenched pattern.

Anxiety Habit Loop

Anxiety can trigger the mental behavior of worrying, which provides a temporary sense of control or 'doing something,' thereby reinforcing the loop. This makes the brain associate worrying with a reward, even though it ultimately increases anxiety.

Prediction Error

This is a learning mechanism where the brain compares an expected reward with the actual reward. A positive prediction error (better than predicted) reinforces a behavior, while a negative prediction error (worse than predicted) discourages it. Awareness is crucial for this error term to register and drive learning.

Pleasure Plateau

This concept describes the point during eating where the reward value of each bite tapers off, indicating the body has had enough. If one pays attention, they can stop at this plateau, finding it more rewarding than overindulging.

Disenchantment Database

This refers to the cumulative learning process where, through repeated awareness of the unrewarding or negative consequences of certain behaviors (like overeating), the brain becomes less interested or 'disenchanted' with them, leading to a natural reduction in those behaviors.

Unforced Freedom of Choice

This is the ability to freely choose healthier or more rewarding behaviors, not out of willpower or external rules, but because embodied awareness has recalibrated the brain's reward system, making the healthier option genuinely feel better and more desirable.

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Why do we eat when we're not hungry?

We eat when not hungry due to evolutionary mechanisms that encouraged remembering food sources and eating calorically dense foods for famine, which are now misaligned with modern food abundance and engineered 'food-like objects' designed for overconsumption. Emotional triggers like stress, tiredness, or boredom also create learned eating habits.

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What is the difference between a habit and an addiction?

A habit is an automatic behavior, often beneficial for survival, that allows us to perform actions without conscious thought. Addiction is at the extreme end of the habit spectrum, characterized by continued use despite adverse consequences.

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Why do diets and calorie counting often fail?

Diets and calorie counting often fail because they are willpower-based and rely on external rules, which our brains are not good at following consistently. This leads to a 'yo-yo' effect and feelings of personal failure, rather than recognizing the limitations of willpower-based approaches.

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What is the role of awareness in changing eating habits?

Awareness is critical for changing habits because it allows the brain to register 'prediction errors' – the difference between expected and actual rewards. By paying attention to how food makes us feel (before, during, and after eating), the brain can update the reward value of behaviors, leading to natural shifts in eating patterns.

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How can one differentiate between physiological hunger and emotional eating?

One can differentiate by using a 'hunger test' checklist that helps identify typical symptoms of physiological hunger versus emotional states like stress or boredom. Reflecting on when the last meal was (e.g., six hours ago vs. six minutes ago) also provides crucial context to calibrate awareness.

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What is the 'pleasure plateau' and how can it help with overeating?

The 'pleasure plateau' is the point during a meal when the enjoyment or reward from each bite begins to diminish, signaling that the body has had enough. By paying attention and asking 'is this more rewarding or less rewarding than the last bite?', one can stop eating when full, which feels more rewarding than overindulging.

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Can mindful eating be practiced in social situations?

Yes, mindful eating can be practiced in social situations by consciously putting down one's fork during conversations and taking mindful bites during lulls. It can also be a shared exploration by inviting others to pay attention to the taste and experience of the food.

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How does self-judgment impact eating habits?

Self-judgment is an unpleasant emotion that can paradoxically spawn unhealthy eating habits, as people may eat to soothe or numb themselves from negative feelings. This can create a vicious cycle where self-loathing leads to more overeating.

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Can someone ever mindfully eat 'unhealthy' foods like gummy worms?

Yes, someone can mindfully eat 'unhealthy' foods. The approach is not about food rules, but about paying attention to the experience. By doing so, individuals might naturally become disenchanted with foods that don't truly feel good to their body, like realizing gummy worms taste 'sickly sweet petroleum' rather than truly enjoyable.

1. Cultivate Awareness During Eating

Bring curious awareness to your eating experience (before, during, and after) to enable your brain to learn the true reward value of the behavior and effectively change habits. This is the critical behavior change method, as awareness is necessary for your brain to register positive or negative prediction errors.

2. Map Your Eating Habit Loops

Identify the trigger, behavior (eating), and the temporary reward (e.g., distraction, numbing) for your habitual eating patterns. Understanding these three components is the first step to working with and changing your habits.

3. Observe the Pleasure Plateau

During a meal, pay attention to each bite and notice when the pleasure or reward of eating tapers off. Stop eating when you reach this ‘pleasure plateau’ where your brain indicates you’ve had enough, which is more rewarding than overindulging.

4. Assess Contentment After Eating

Pay attention to how content (not just satisfied) you feel after eating, especially after overeating. Discontentment helps your brain shift the reward value of that behavior, leading to a natural reduction in the habit over time.

5. Practice Informal Awareness

Integrate informal awareness practices into your daily eating, starting with curiosity about why, what, and how you are eating. These informal practices can be highly effective and can even inspire a more formal meditation practice.

6. Identify a Bigger, Better Offer

Compare the felt experience of old, unrewarding habits (e.g., overeating) with new, more rewarding behaviors (e.g., stopping when full, eating healthy food). Your brain will naturally gravitate towards options that are genuinely more rewarding.

7. Perform the Hunger Test

Use a checklist of symptoms and consider when you last ate to differentiate between physiological hunger and emotional triggers (stress, boredom) before eating. This helps calibrate your awareness to understand why you are reaching for food.

8. Practice Mindful Eating Techniques

Remove distractions, put down your fork between bites, and pay full attention to the taste and experience of your food. This enhances enjoyment and helps you differentiate between healthy foods and ‘chemical craveogenic materials’ like highly processed snacks.

9. Recognize Emotional Triggers

Be aware of emotions like hunger, anger, loneliness, and tiredness (HALT) as they make you less likely to resist cravings and can trigger habitual emotional eating. These emotional states can lead to ‘hedonic hunger’ where you eat for soothing rather than physiological need.

10. View Stress Eating as Habit

Recognize that anxiety can trigger stress eating, where eating provides a temporary distraction or numbing, reinforcing the habit loop. Understanding this mechanism allows you to address the habit directly rather than just the emotion.

11. Avoid Willpower-Based Diets

Do not rely on willpower or external diet rules (e.g., calorie counting, specific food restrictions) for long-term eating habit change. Willpower is often more myth than muscle, and such approaches frequently lead to yo-yo dieting and eventual failure.

12. Focus on Relationship, Not Weight

Shift your focus from intentional weight loss to changing your relationship with food. By paying attention and stopping when full, natural weight normalization may occur without the toxic enterprise of obsessively trying to wrench your body into a certain shape.

13. Practice Intuitive Eating

Listen to your body’s internal cues to eat what you want, when you want, while tuning into how your body feels and applying gentle nutrition principles. This approach allows your body’s innate wisdom to guide your food choices.

14. Learn from Mindless Eating

If you eat mindlessly, later recall the emotional or physical consequences (e.g., guilt, a ‘gut bomb’) of that eating episode. This retrospective awareness still counts for learning and helps build your ‘disenchantment database’ with unhealthy behaviors.

15. Address Self-Judgment

Recognize that self-judgment and self-loathing are unpleasant emotions that can trigger or exacerbate unhealthy eating habits, sometimes leading to a cycle of binging. Practice self-kindness and self-compassion instead, as shame blocks learning.

16. Differentiate Wants from Needs

Understand whether you are feeding a ‘want’ (e.g., temporary distraction from an emotion) or a genuine ’need’ (e.g., emotional support). Food only provides temporary relief for wants and cannot fulfill deeper emotional needs.

17. Embrace Unforced Freedom of Choice

Cultivate awareness to develop an ‘unforced freedom of choice’ in your eating, allowing your body’s wisdom to guide you toward more rewarding and healthier options. This contrasts with the ‘food jail’ created by external rules.

18. Mindfully Indulge If Desired

If you choose to eat typically ‘unhealthy’ foods, do so mindfully, paying attention to the experience. You may find that a small amount is satisfying, or that you become disenchanted with them, rather than needing to follow strict food rules.

19. Expect Imperfection and Learn

Recognize that ‘failing’ to pay attention is normal and not a reason for self-judgment. Use these instances as opportunities to learn from the subsequent physical and emotional feelings, reinforcing healthier preferences over time.

20. Mindfully Eat in Social Settings

In social situations, pause eating during conversations, take mindful bites during lulls, or invite others to a shared exploration of the food to maintain awareness. This allows you to stay present with your eating even amidst distractions.

21. Focus on Present Habit

To change an eating habit, focus on the habit itself in the present moment, rather than solely on past traumas or childhood history. Habits are reinforced and un-reinforced based on what happens in the present.

22. Reclaim Your Eating Power

Recognize and resist manipulation by food companies that engineer foods to be irresistible, and by cultural messages promoting unrealistic aesthetic standards. Empower yourself through awareness and by listening to your own body’s signals.

23. Seek Trauma-Informed Support

If past trauma leads to dissociation from your body and makes awareness difficult, consider trauma-informed therapy to help release its effects. This can be a crucial step in being able to fully engage with awareness-based eating practices.

24. Advocate for Systemic Food Changes

Recognize that individual habit change is impacted by social determinants of health, such as access to healthy food. Advocate for policy-level changes that promote healthier food options and reduce the prevalence of cheap, unhealthy alternatives.

Willpower is more myth than muscle.

Judson Brewer

Nothing tastes as good as skinny feels, right? You know, that's a high bar for anybody to meet. And I think basically impossible in the long run. And so you're you're setting yourself up for the yo-yo.

Judson Brewer

Our bodies are actually extremely wise when we pay attention to them. And they know when we're eating healthy food and when we're not eating healthy food, our bodies don't need a label scanner to determine what is healthy.

Judson Brewer

The knowing isn't good enough. You know, our thinking brain is not nearly as strong as our feeling body.

Judson Brewer

I sometimes think about, you know, when you get a new iPhone, and I apologize to anybody who doesn't use iPhones, and maybe I'm not sure I don't, I've never really played with an Android, maybe this technology is on an Android too. But when you get a new iPhone, and you it has to learn your face, and you have to hold it all over, you have to move the phone around, and it's learning the contours of your face. And you can see that it's learning and learning and learning and learning and learning and it finally it's like, okay, I got your face. And so now anytime you hold your face up in front of this phone, it's going to unlock. I feel like that's happening with the brain all the time. You are just teaching and teaching and teaching. And at some point, bing, it gets it and you get disenchanted. You don't want to do that stupid thing anymore.

Dan Harris

I like the psychic constipation. And I like how you're differentiating. I think of it as self-indulgence is different than self-care.

Judson Brewer

21-Day Challenge for Changing Eating Habits

Judson Brewer
  1. Map your habit loops: Identify the trigger, behavior (eating), and the result/reward (e.g., temporary distraction, numbing).
  2. Interrupt your habit loops with awareness: Bring curious awareness to what's happening before, during, and after you eat to register prediction errors.
  3. Identify a bigger, better offer: Compare the experience of old, unrewarding habits with new, more rewarding behaviors (e.g., stopping when full, choosing healthier foods) to let the brain naturally gravitate towards what feels better.

The Hunger Test

Judson Brewer
  1. Go through a checklist of typical symptoms that come up when someone is hungry, stressed, or bored.
  2. Notice what's happening in your experience (e.g., restlessness).
  3. Think back to when you last ate (e.g., six hours ago vs. six minutes ago) to differentiate physiological hunger from emotional responses.
  4. Use this information to calibrate your awareness and understand the source of your urge to eat.

Mindful Eating Practice

Judson Brewer
  1. Before eating, ask 'Why am I reaching for food?' (Am I hungry, emotionally charged, or is it habit?).
  2. Ask 'What am I reaching for?' (Comfort food or something healthy?).
  3. During eating, ask 'How am I eating?' (Am I paying attention or gobbling it down mindlessly?).
  4. Remove distractions (phones, books, TV) and pay full attention to the taste and experience of the food.
  5. Put your fork or spoon down between bites to slow down and enhance awareness.
  6. Continuously ask yourself with each bite, 'Is this more rewarding or less rewarding than the last bite?' to identify the pleasure plateau and stop when full.
  7. After eating, reflect on the results, even if you ate mindlessly, to build your 'disenchantment database' by recalling any negative emotional or physical feelings.
15 pounds
Average weight gain after quitting smoking Typical for people who substitute eating for smoking.
40%
Reduction in craving-related eating Found in a UCSF study of people using the Eat Right Now app.
10 to 15 times
Number of times for reward value to shift below zero When paying attention to the discontentment of overeating, the brain's reward value for that behavior can shift below zero in as few as 10 to 15 instances.
15 minutes
Time for stomach to register fullness It takes about 15 minutes for our stomach to register fullness, highlighting the importance of not eating too quickly.
2
Number of potato chips eaten by patient after mindful eating A patient who previously ate an entire bag of potato chips mindlessly, stopped at two chips after starting to pay attention.