Science of Mindsets for Health & Performance | Dr. Alia Crum

概览

Andrew Huberman speaks with Dr. Aliyah Crum about mindsets: core beliefs or assumptions that shape expectations, explanations, goals, behavior, and physiology. The episode argues that mindsets are not merely motivational slogans; they can alter how the body responds to food, exercise, stress, medication, symptoms, and side effects.

A central theme is that behavior and mindset work together. Crum repeatedly avoids saying that outcomes are “all in the mind,” and instead frames health outcomes as a combined product of objective inputs, social context, beliefs, and the body’s natural physiological responses.

The conversation moves through Crum’s milkshake study, hotel-housekeeper exercise study, stress-mindset research, Navy SEAL training data, media influences on food beliefs, medical side-effect framing, and parenting. The practical takeaway is to ask: “What is the effect of my mindset about X?” and then deliberately cultivate mindsets that are useful rather than merely arguing whether they are perfectly right or wrong.

分段落总结

[00:00] Guest Introduction and Core Premise

[事实] Huberman introduces Dr. Aliyah Crum as a Stanford psychology professor and founder/director of the Stanford Mind and Body Lab.

[事实] He says her work focuses on how thoughts and beliefs shape physiological responses to food, stress, exercise, and medication.

[事实] Huberman previews the idea that beliefs about treatment side effects can affect treatment speed, effectiveness, and suffering during treatment.

[推测] The episode is framed as both a scientific discussion and a practical guide to identifying and changing everyday mindsets.

[04:32] What a Mindset Is

[事实] Crum defines mindsets as core beliefs or assumptions about a domain or category that orient expectations, explanations, and goals.

[事实] She uses stress as an example: a person may view stress as enhancing and useful, or as debilitating and harmful.

[事实] Crum says mindsets shape what people expect, how they explain experiences, and what they are motivated to do.

[06:05] Growth Mindset and Health-Related Mindsets

[事实] Crum connects Carol Dweck’s growth-mindset work to beliefs about whether intelligence or ability is fixed or changeable.

[事实] She says her own lab expands mindset research into health domains including stress, food, exercise, illness, symptoms, and side effects.

[事实] Examples include whether healthy foods are viewed as depriving or indulgent, whether exercise feels sufficient, and whether side effects signal harm or treatment progress.

[09:07] Mindsets Can Shape Physiology

[事实] Crum says mindsets influence attention and motivation, and may also shape physiological mechanisms by changing what the body prioritizes and prepares to do.

[事实] She emphasizes that mindsets can matter regardless of whether a simplified belief is completely true or false.

[推测] This sets up the episode’s broader claim that mindset is a biological variable, not only a psychological attitude.

[10:39] The Milkshake Study

[事实] Crum describes a Yale study in which the same participants consumed the same milkshake twice, but were told once it was a high-calorie indulgent shake and once that it was a low-calorie sensible shake.

[事实] The actual shake was about 300 calories, while the labels suggested roughly 620 calories in one condition and a low-calorie diet shake in the other.

[事实] When participants believed they consumed the indulgent shake, their ghrelin levels dropped at a three-fold stronger rate than when they believed they consumed the sensible shake.

[事实] Crum says the study showed that belief about food can affect metabolic or physiological response, not just taste, satisfaction, or fullness.

[15:12] Indulgence, Satiety, and Eating Mindset

[事实] Crum says she initially assumed that believing food was healthy would be the better mindset, but the study suggested a more counterintuitive result.

[事实] Participants who thought they were eating “sensibly” remained more physiologically hungry than when they thought they were eating indulgently.

[事实] Crum says a useful eating mindset may involve believing one is having enough food and experiencing satisfaction, while still choosing healthy foods.

[推测] The practical implication is not to abandon nutrition quality, but to avoid a chronic deprivation mindset around eating.

[19:06] Diet Debates and Belief Effects

[事实] Huberman asks whether mindset effects may help explain why different diet communities report strong benefits from plant-based, carnivore, omnivorous, or intermittent-fasting approaches.

[事实] Crum says mindset likely contributes, but she does not weigh in on which diet is best.

[事实] She argues that outcomes reflect both what people actually eat and what they believe about what they eat, including the surrounding social context.

[推测] The discussion suggests that community reinforcement and confidence in a diet may amplify perceived or physiological benefits, though diet composition still matters.

[21:10] Placebo, Belief, and Nocebo Effects

[事实] Crum distinguishes traditional placebo effects, involving an inactive substance, from broader belief or mindset effects.

[事实] She says placebo effects can be understood as involving social context, beliefs, and natural physiological processes.

[事实] She also describes nocebo effects, where negative beliefs or warnings can increase negative symptoms or side effects.

[事实] Crum notes that some side-effect experiences may come from changed attention, while others may involve real physiological changes.

[24:23] The Hotel Housekeepers Exercise Study

[事实] Crum describes a study with hotel housekeepers who were physically active at work but often did not view their work as exercise.

[事实] Half of the workers were informed that their work met exercise guidelines and could produce health benefits.

[事实] Four weeks later, without detectable behavior or diet changes, the informed group showed health benefits including weight loss and reduced systolic blood pressure.

[事实] Crum says the study illustrates that the total effect of an activity depends on both what people do and what they think about what they do.

[30:01] Exercise Guidelines and the Problem of “Not Enough”

[事实] Crum argues that public health messages telling people how much exercise they need often fail to motivate behavior change.

[事实] She says such messages may also create a harmful mindset when people feel they are falling short.

[事实] Crum emphasizes helping people become more active while also helping them reap the benefits of activity they already do.

[推测] The phrase “sense of enoughness” becomes a key practical theme for exercise mindset.

[31:03] Perceived Exercise and Mortality Data

[事实] Crum describes work by Octavia Zart using nationally representative data sets that asked people how much exercise they got relative to others.

[事实] She says perceived exercise relative to others did not correlate strongly with objective activity data.

[事实] In the studies discussed, feeling less active than others predicted higher death rates even after controlling for objective activity.

[事实] Crum notes that one sample showed a 71% higher risk of death among those who felt they got less activity than others.

[37:15] Sleep, Trackers, and Feedback Effects

[事实] Huberman asks whether mindset can influence the effects of poor sleep or sleep deprivation.

[事实] Crum describes a study in which participants received false feedback about sleep quality, and poorer feedback led to deficits on cognitive tasks.

[事实] Huberman connects this to modern sleep trackers and says he personally prefers a subjective morning assessment over seeing a numerical score.

[推测] The discussion implies that health-tracking feedback can help some users but may also prime expectations that change performance.

[41:23] Rethinking Stress

[事实] Crum says public health messaging often presents stress as uniformly bad for health, productivity, relationships, fertility, and cognition.

[事实] She says the broader stress literature is more complex and includes evidence that stress can sharpen attention, speed information processing, and support growth after adversity.

[事实] Crum does not argue that stress is only enhancing; she calls the true nature of stress paradoxical and manifold.

[推测] Her position is that stress outcomes depend partly on how people interpret and channel the stress response.

[45:00] Stress-Mindset Videos and Workplace Outcomes

[事实] Crum’s team created measures of whether people view stress as enhancing or debilitating.

[事实] In correlational studies, a more stress-enhancing mindset was linked with better health, wellbeing, and performance.

[事实] In a study with UBS employees after the 2008 financial crisis, participants watched either stress-enhancing, stress-debilitating, or no videos.

[事实] Those who watched stress-enhancing videos reported fewer stress-related symptoms and better work performance compared with those who watched debilitating videos.

[49:06] Navy SEAL Training and Stress Mindset

[事实] Crum says most populations studied averaged on the stress-debilitating side of the scale, but Navy SEAL recruits averaged on the stress-enhancing side.

[事实] Among recruits in BUD/S training, a more stress-enhancing mindset predicted higher likelihood of completing training, faster obstacle-course times, and better peer ratings.

[事实] Crum clarifies that a stress-enhancing mindset does not mean stressors like combat, cancer, or poverty are good.

[事实] She says the experience of stress associated with adversity can still lead to enhancing outcomes in cognition, health, performance, and wellbeing.

[53:10] Mechanisms of Stress Mindset

[事实] Crum says a stress-debilitating mindset can lead people to either “freak out” or “check out.”

[事实] She says a stress-enhancing mindset changes the motivation toward asking how to use stress to learn, grow, deepen relationships, and act on priorities.

[事实] Crum reports that stress-enhancing mindsets have been associated with more positive affect, more moderate cortisol responses, and higher DHEA responses in some studies.

[事实] Huberman adds that stress physiology can involve adrenaline, dopamine-related pathways, and anabolic hormone responses.

[57:15] Mindsets as a Portal Between Conscious and Subconscious Processes

[事实] Crum says she thinks of mindsets as a portal between conscious and subconscious processes.

[事实] She describes mindsets as default settings of the mind that can operate without constant conscious awareness.

[事实] She says people can bring a mindset into awareness, examine it, and potentially reprogram it.

[推测] This framing explains how deliberate reflection could eventually influence automatic physiological responses without direct conscious control over hormones or autonomic systems.

[60:24] A Three-Step Approach to Using Stress

[事实] Crum says stress should be defined as the neutral, yet-to-be-determined effect of experiencing or anticipating adversity in goal-related efforts.

[事实] She emphasizes that people only stress about things they care about.

[事实] Her three-step approach is to acknowledge stress, welcome it by reconnecting to what one cares about, and utilize the stress response toward the relevant goal.

[事实] Huberman notes that stress narrows visual attention and can improve the capacity to process information quickly.

[66:00] Where Food Mindsets Come From

[事实] Crum says mindsets are influenced by upbringing, culture and media, influential others, and conscious choice.

[事实] She discusses research showing that movies and Instagram accounts of highly influential people frequently portray nutritionally poor foods.

[事实] Crum says unhealthy foods are often described with language of fun, excitement, sexiness, danger, and indulgence, while healthy foods are often framed as boring, bland, or deprivation-based.

[事实] She argues that people producing media could shape healthier food mindsets by portraying healthy foods as appealing and desirable.

[75:17] Side Effects, Allergy Treatment, and Medicine

[事实] Crum says she is now especially interested in using mindsets to improve active drugs and treatments.

[事实] She describes a food-allergy treatment in which children gradually consumed increasing doses of allergens such as peanuts over six or seven months.

[事实] In the study, some children were helped to view symptoms and side effects as signs that the treatment was working and their bodies were getting stronger.

[事实] Crum says this mindset led to reduced anxiety, fewer symptoms at high doses, and better outcomes on immune markers of allergic tolerance.

[79:03] Medication Expectations and Mechanisms

[事实] Huberman asks whether positive framing of an effective medication could amplify its effect, potentially even at lower doses.

[事实] Crum says this could be true to some degree, but it depends on the specific mindset being evoked.

[事实] She argues that a mindset approach is more useful than simple expectancy because it pushes researchers to identify mechanisms such as anxiety reduction or changes in what the body prioritizes.

[推测] The future research direction is not merely telling patients “this will work,” but understanding which treatment-related beliefs produce measurable physiological pathways.

[82:09] Meta-Mindset and Teaching Mindsets

[事实] Crum describes “meta mindset” as work on consciously and deliberately changing mindsets.

[事实] She says the first step is recognizing that beliefs are filtered interpretations of reality rather than direct reflections of objective reality.

[事实] The second step is asking what effect a mindset has: whether it is helpful or harmful, rather than only whether it is right or wrong.

[事实] As a parent, Crum says she tries to focus less on forcing behaviors and more on helping her child adopt adaptive mindsets about healthy food and stress.

[87:12] Crum’s Own Background and Motivation

[事实] Crum says her research often comes from her own experiences or difficulties, including intense exercise, eating concerns, dissertation stress, and the pandemic.

[事实] She was trained as a clinical psychologist and did clinical work related to stress and trauma, though she no longer sees patients.

[事实] She says athletic experience taught her that the same physical body can perform differently depending on what a person is thinking.

[事实] Crum says her father was a martial artist and meditation teacher, and mind-body ideas were part of her early life.

[92:19] Resources and Closing

[事实] Crum says her lab’s papers, materials, and interventions are available through the Stanford Mind and Body Lab website.

[事实] She mentions Stanford SPARC and a Rethink Stress toolkit based on acknowledging, welcoming, and utilizing stress.

[事实] Crum closes by saying mindset research is only the “tip of the iceberg” and invites listeners to share stories or collaborate.

[事实] Huberman concludes by emphasizing the impact of mindsets on biology, psychology, and the interaction between mind and body.

播客点评/总结

[推测] The episode’s main value is that it makes mindset research concrete through specific studies rather than presenting mindset as vague positivity. The milkshake, hotel-housekeeper, UBS stress, Navy SEAL, and food-allergy examples give listeners several ways to see how belief, behavior, physiology, and social context interact.

[推测] A major strength is Crum’s repeated insistence that mindset is one part of the puzzle. She does not dismiss objective nutrition, exercise, sleep, medication, or adversity; instead, she argues that the meaning assigned to those experiences can change how people respond to them.

[推测] The main limitation is that the discussion often summarizes studies at a high level and does not deeply examine study design limits, effect sizes beyond a few highlighted examples, or cases where mindset interventions may fail. Listeners wanting clinical or personal protocols would need to consult the papers and toolkits referenced in the episode.

[推测] This episode is especially suitable for listeners interested in health psychology, behavior change, stress management, medicine, parenting, coaching, athletic performance, or public health communication. It is less suited to listeners looking for a narrow protocol or a single definitive answer about the best diet, exercise program, or medication strategy.