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hubermanlab
hubermanlab·April 19, 2024

Stress Mindset, Time Perception, Jet Lag, and Psychedelics: A Q&A with Dr. Andrew Huberman

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Summary

This Q&A session from the Sydney Opera House delves into several key areas of neuroscience and human performance. Regarding stress, Dr. Huberman highlights two recent findings: first, the profound impact of one's mindset on physiological responses to stress, citing research by Ali Crum which demonstrates that believing stress can be enhancing actually leads to improved cognitive and physical performance. This isn't placebo but a real, knowledge-based shift in physiological response. Second, the anterior mid-cingulate cortex (AMCC), a brain structure studied by Joe Parvizi, is shown to expand and increase activity when individuals successfully overcome challenges. Deliberately seeking out difficult, safe challenges can enhance AMCC function, generalizing to improved stress management across various life domains.

The discussion then shifts to time perception, explaining how our visual system sets our internal 'frame rate' of experience. When focusing on close objects or anticipating outcomes (high autonomic arousal), our frame rate increases, making time feel like it passes quickly. Conversely, viewing distant, unpredictable landscapes (low arousal) slows the frame rate, making time feel prolonged. This mechanism is leveraged in activities like watching aquariums for relaxation and is influenced by neuromodulators like serotonin, explaining time distortions experienced with psychedelics or cannabis. The episode also touches on how social media algorithms are designed to manipulate this frame rate to maintain engagement.

Dr. Huberman provides a detailed jet lag protocol, emphasizing that most people are effectively 'shift workers' due to modern lighting and device use. The core of the protocol revolves around the 'temperature minimum,' which typically occurs 2-3 hours before one's natural wake-up time. Exposing eyes to bright light *before* this minimum causes a phase delay (waking up and going to sleep later), while exposure *after* causes a phase advance (waking up and going to sleep earlier). Middle-of-the-day light is a 'circadian dead zone' for clock shifting. Eating on a local schedule, physical activity, and social rhythms also serve as 'zeitgebers' to help reset the circadian clock. He also recommends using red light in the evening to reduce cortisol levels and promote relaxation.

Finally, the conversation addresses the science of psychedelics, a topic Dr. Huberman notes has shifted from counterculture to federally funded research. He discusses psilocybin, LSD, and MDMA (an empathogen), highlighting their therapeutic potential for conditions like severe depression, PTSD, and eating disorders. Psilocybin, chemically similar to serotonin, binds to specific serotonin receptors and appears to increase 'resting state lateral connectivity' in the brain, fostering greater communication between brain regions. While acknowledging personal past negative experiences and cautioning against adolescent use due to high brain plasticity, he points to promising work by researchers like Nolan Williams on ibogaine for PTSD, emphasizing the need for qualified clinical guidance and monitoring due to potential risks.

Key Quotes

"whatever you believe about stress provided the information you have is true is what happens"
"the mere learning of something can actually change how we respond to something at a core physiological level"
"I feel like I'm heading into a storm... but I'm ready I'm leaning in"
"doing things that are difficult that we don't enjoy or that we have to push ourselves to do grow and enhance the activity within this anterior mid singulate cortex"
"the importance of doing hard things in a safe manner psychologically and physically safe manner of course is truly beneficial toward our ability to manage ourselves in what would otherwise be called stress"
"our frame rate on life is highly dynamic and in fact it is and in fact it's set by you guessed it our visual system"
"when we focus on things up close... our perception of time is more fine grain that is our frame rate is higher... than when we view things at a distance"
"most everybody in the world now qualifies as a shift worker"
"Bright Light in the 2 hours or so maybe 3 hours prior to that temperature minimum time... you're going to shift your wakeup time and your toed time what's called a phase delay"
"viewing bright light in the two to three hours after your temperature minimum you advance your clock meaning you pull back your clock to want to wake up a bit earlier and go to sleep a little bit earlier"
"middle of the day period is What's called the Circadian Dead Zone"
"psilocybin if you look at it chemically looks a lot like serotonin... and it seems to create more what we call resting state lateral connectivity"
"being an adolescent a kid or a teen is a psychedelic experience you do not need psychedelics"

Concepts

Themes

  • Mind-body connection
  • Neuroplasticity and adaptation
  • Optimizing human performance
  • Circadian biology and sleep
  • The science of stress management
  • Consciousness and perception
  • Therapeutic potential of psychedelics
  • Deliberate challenge and growth

Related to:

Science Insights

Protocols

  • Jet lag protocol (light exposure relative to temperature minimum)
  • Red light exposure for cortisol reduction
  • Deliberately seeking out challenges for AMCC growth

Research Cited

  • Ali Crum's work on stress mindsets
  • Joe Parvizi's work on anterior mid-cingulate cortex
  • Nolan Williams' work on ibogaine for PTSD

Actionable Advice

  • View bright light in the morning (after temperature minimum) to advance circadian clock
  • View bright light in the evening (before temperature minimum) to delay circadian clock
  • Use red light in the evening to reduce cortisol
  • Engage in difficult tasks to enhance anterior mid-cingulate cortex activity
  • Adjust eating schedule to local time when traveling

Mechanisms Explained

  • Mindset's physiological impact on stress response
  • Anterior mid-cingulate cortex's role in leaning into challenge
  • Visual system's role in setting time perception frame rate
  • Serotonin's involvement in psychedelic-induced time distortion
  • Temperature minimum as a key circadian anchor

Contraindications

  • Psychedelic use for adolescents (due to high brain plasticity)
  • Cardiac issues associated with ibogaine requiring monitoring

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