Podbit · The Diary Of A CEO with Steven Bartlett
People with zero amyloid plaques can have full-blown Alzheimer's. People with massive plaque deposits can have completely normal cognition. The real driver is energy resistance in the brain — starting with hypermetabolism, then collapsing into hypometabolism — a pattern identical to what diabetes does to muscle.
Where this was said
At 1:02:20 · chapter starts 56:10
Picard demolishes a common misconception: you do not feel more energetic after exercise because you have more total energy. You feel better because energy flows more smoothly through a system that has been forced to build more mitochondria. Going from couch to marathon training can literally double mitochondrial density in muscle. The same principle governs food: eating more never gives you more energy; it increases metabolic friction. Alcohol is a toxin the liver must burn energy to neutralize — the calories go in, but net energy goes down, which is why the next morning is miserable. Toxins from pesticides, pathogens, and parasites all consume the same finite budget. The immune system fighting a flu hijacks energy from the brain, which is why you feel mentally slow and emotionally flat when sick. The body's sickness behavior — social withdrawal, skin sensitivity, desire to curl up — is an energy conservation strategy, not a malfunction. The message is consistent: everything that enters the body that shouldn't be there costs energy, and that energy comes from somewhere else.
Ketones travel a much shorter metabolic pathway from blood to brain mitochondria than glucose does. Liver mitochondria make ketones from fat and ship them to brain mitochondria — an inter-organ communication that bypasses the long, friction-filled glucose pathway. That's why many people think more clearly on a ketogenic diet.
Self-help fails because people are sold one universal cure by the hyper-responders who had a transformative result from it. The real problem is context: every method works for the right person at the right time, which is almost never you just because the author says so.
Spencer Greenberg was once so socially anxious his heart pounded just approaching a stranger. His therapist gave him homework: go to a bar alone, talk to 5 strangers. Starting with asking for the time, he worked up to asking men for hugs — and his anxiety fell dramatically in 6 months.
A person who flies regularly but obsessively checks weather forecasts before every flight is not doing exposure therapy — they're teaching their brain that flying is only safe with the ritual. Safety behaviors prevent the brain from ever learning that the feared thing is actually fine.
The worry-time technique assigns all worries to one scheduled slot (e.g. 5 PM). Every time a worry surfaces, you write it down and ban yourself from engaging with it until that time. When 5 PM arrives, most worries feel trivial and the act of batch-worrying exposes how little it actually accomplishes.
In a randomized study of 20 habit techniques, 'habit reflection' stood out: recall a past habit you successfully built, write down what helped you succeed, then apply those same strategies to your new habit. It works because it's self-adapting — it uses whatever worked for YOU.
The tiny habits technique — always having a minimal version of your habit you can do when life gets in the way — keeps the mental machinery of habit formation from breaking. Paradoxically, people given a tiny-habit fallback option were MORE successful at the full habit, not less.
Fears and worries act like playground bullies — they want to ambush you. But when you deliberately seek them out and choose the time of engagement, they lose their power. The volitional act of starting the fight on your own terms is one of CBT's most underappreciated insights.
Most downtime defaults are things you regret immediately after — phone scrolling, binge TV. 'Glad you did it' activities meet the same need for rest but leave you feeling like you spent your time well. The switch from a bad screen to a documentary, a book, or a walk costs almost no extra effort but compounds into identity over time.
You rarely control your first reactive thought. But you can train your second thought — the response to the trigger — by asking whether your initial reaction is the most helpful one and replacing it with something equally true but more constructive. Over time, that second thought becomes automatic.
We use essential and analytics cookies to run Vuci. To understand how the site is used: Privacy Policy.
Install Vuci on your phone
Add it to your home screen for a faster, app-like experience.
Install Vuci on your phone
Tap the Share button, then “Add to Home Screen”.
A new version is available
Reload to get the latest Vuci.