High-stakes mental tasks are physically taxing; a top chess player can burn 600 calories sitting at a board. Physical conditioning is not just for athletes; it directly builds gray matter and enhances executive function, providing the stamina needed to make good decisions under cognitive stress in a professional environment.
Related Insights
When training for a mental sport like chess, the foundational step is stabilizing energy by managing glucose metabolism, perhaps via intermittent fasting. Many athletes jump to "smart drugs" and stimulants, but this is ineffective if the underlying energy system is volatile and prone to crashes.
Top performers like jiu-jitsu champion Marcelo Garcia avoid staying in a state of moderate, constant stress (a 'simmering six' out of ten). Instead, they master dropping to zero (deep rest) and exploding to ten (full engagement) only when needed, conserving energy and preventing burnout.
Top performers often exist in a state of constant calculation. The key to sustainable excellence is learning to consciously switch between being 'on the field' (strategizing) and 'off the field' (being present). Deliberately switching off sharpens focus and makes you more effective when you are back 'on'.
![Ari Emanuel - The Anti-AI Bet - [Invest Like the Best, EP.448] thumbnail](https://megaphone.imgix.net/podcasts/c5910280-c4dd-11f0-94be-ab6a7a5865b0/image/1e5a2263eb62fcde200846919e24419a.jpg?ixlib=rails-4.3.1&max-w=3000&max-h=3000&fit=crop&auto=format,compress)
Contrary to viewing workouts as a time sink, a 20-30 minute high-intensity session can be a 'freebie.' It generates more productive energy and focus than the time it consumes, effectively returning the invested time through enhanced efficiency, better sleep, and improved mood throughout the day.
Burnout extends beyond mental exhaustion to a measurable physiological state. High cortisol levels provide a "physical manifestation" of chronic stress, reframing burnout from a vague feeling into a tangible health issue. This perspective underscores the importance of physical rest and recovery, not just mindset shifts, to heal.
The brain's emotional center is five times stronger than its rational part. When triggered by stress, it shuts down executive function. A deliberate 90-second pause is a powerful antidote that allows the physiological wave of emotion to pass, enabling clearer, more considered decision-making.
Instead of asking, "Have I worked enough to deserve rest?", ask, "Have I rested enough to do my best work?" This shift reframes rest from a reward you must earn into a necessary input for quality, compassion, and higher-level thinking. When in a fight-or-flight state, you lack access to the brain regions required for your most meaningful work.
At scale, the biggest threat isn't a lack of opportunity but mental overload. The key is to treat your focus as a finite resource and actively protect it. This means becoming comfortable saying "I'm done for today" and disappointing people, realizing that protecting your mind is more strategic than satisfying every request.
Many activities we use for breaks, such as watching a tense sports match or scrolling the internet, are 'harshly fascinating.' They capture our attention aggressively and can leave us feeling more irritated or fatigued. This contrasts with truly restorative, 'softly fascinating' activities like a walk in nature.
Training methods leverage the brain's predictive nature. Repetitive practice makes the brain efficient at predicting movements, leading to mastery and lower energy use ('muscle memory'). In contrast, unpredictable training creates constant prediction errors, forcing adaptation and burning more calories, which drives growth and resilience.
