Mind Hacks: Sauna mood boosts, stress balance, and intuition with Joel Pearson

Overview

In this Mind Hacks mini episode, psychologist and cognitive neuroscientist Professor Joel Pearson from the Future Minds Lab at UNSW shares practical tools and architectures for looking after mental health. The discussion centers on everyday strategies like sauna use and exercise as mood boosters, how to balance energy and stress, and why it’s important to approach wellness trends with scientific caution. Pearson also reflects on intuition and the broad human impact of AI, clarifying common misconceptions and setting realistic expectations for what science can tell us about the mind.

Key takeaways include the value of a flexible mental state that can ramp up for stimulants and high attention, followed by deliberate recovery, the mood-boosting potential of sauna as a sit-and-activate form of exercise, and a cautionary note about translating animal research into human wellness claims. Pearson also highlights how intuition is experienced differently across individuals and how AI is reshaping our psychology and society, not just our tools.

Introduction and guest

Mind Hacks continues its midweek mini-series by welcoming Professor Joel Pearson, a cognitive neuroscientist leading the Future Minds Lab at the University of New South Wales. The conversation builds on Pearson’s recent work around AI and its effects on brain function, alignment with cognitive health, and the broader psychological and societal shifts associated with rapidly advancing technology. The host frames the format around practical, human-centered questions about mental health, using a friendly, game-inspired approach to keep the dialogue accessible while grounded in scientific nuance.

"I get a tremendous mood boost from the sauna." - Joel Pearson

Love: A real mental health tool

Pearson presents two tools that have made a real difference in his life: regular exercise and using a sauna. He frames sauna as a mood-boosting practice comparable to exercise in its effect when done with awareness of internal temperature and heart rate. He emphasizes that time in the sauna should be guided by physiological signals, notably heart rate and internal temperature, rather than a fixed duration, because individual baselines vary depending on prior exertion and heat exposure. This pragmatic stance highlights a broader point: effective mental-health practices often depend on tailoring to the individual rather than following blanket prescriptions.

"I get a tremendous mood boost from the sauna." - Joel Pearson

Hate: Stress, stimulation, and recovery

The discussion moves to Pearson’s current stressors, particularly anxiety and the tension between seeking stimulation (nicotine, caffeine, energetic activities) and maintaining emotional regulation. He describes a preference for a flexible mental state that can be energized when needed but can quickly recover to prevent prolonged high-stress states. The goal is to harness energy and arousal without tipping into sustained anxiety, using exercise, sauna, and nutritional and lifestyle adjustments to restore balance after high-stimulation periods. This personal example underscores a practical approach to mental health that combines physiological tools with behavioral strategies.

"The state I like to be in is a really flexible state where I can be switched on and take on stress and anxiety, but then find a way to rapidly recover afterwards." - Joel Pearson

Avoid: Caution about wellness trends and biohacks

Pearson cautions against overhyping wellness trends and biohacks that are not robustly tested in humans. He explains the risk of translating animal research into human advice without sufficient human data, noting that humans differ significantly from rodents and that the body’s complexity means not all findings will generalize. He gives a concrete example about coffee timing, noting that while some sources claim waiting a couple of hours before coffee improves energy later in the day, he has not found solid human evidence to support this claim. This section underscores the need for scientific humility and careful interpretation of popular wellness heuristics.

"From animal research to human research is important, because humans are very different to rodents." - Joel Pearson

"I haven't seen any human evidence to support that." - Joel Pearson

Misconceptions: Intuition and AI

Pearson discusses common misconceptions about his work on intuition and about AI, clarifying that discussions about intuition can be polarized—people may either celebrate intuition as a natural guide or worry that science is stripping it of its mystery. On AI, he emphasizes that the conversation is not about teaching AI how to think, but about understanding the human impact and societal disruption that AI may bring, including psychological dynamics and ethical considerations. This section highlights the broader context in which science informs public understanding of technology and mind health, rather than narrowly focusing on techniques or tools.

"intuition can be amazing and should use it all the time, or take the other side of the coin where they're saying I'm destroying the magic and spirituality of intuition by making it scientific." - Joel Pearson

"I'm talking about the AI revolution and its human impact and societal disruption and the psychology around AI." - Joel Pearson

Conclusion and resources

Pearson references a related main episode on intuition and gut instinct, with show notes linking to that content for readers interested in deeper exploration of intuition. The conversation emphasizes practical strategies for mental health, while remaining grounded in evidence-based caution about trends that lack robust human-data support. The takeaway is a balanced, individualized approach to wellbeing—leveraging proven practices like exercise and sauna, maintaining a flexible, recoverable stress response, and evaluating wellness claims through the lens of human research and real-world applicability.