Podbit · The Diary Of A CEO with Steven Bartlett
A Mayo Clinic study showed people on a fat-based diet (fish, avocado, nuts) had 42% less Alzheimer's risk, while those on a standard American carbohydrate diet had 400% more risk. Sugar and foods that rapidly convert to sugar are the core culprit.
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At 1:09:15 · chapter starts 1:09:03
The diet-Alzheimer's connection is where the BRIGHT MINDS framework becomes most actionable. A Mayo Clinic study that compared dietary patterns found a dramatic gradient: people eating primarily healthy fats (fish, avocado, nuts, seeds) had 42% less Alzheimer's risk; those on a protein-dominant diet had 21% less risk; and those on the standard American diet — bread, pasta, potatoes, rice, fruit juice, sugar — had a staggering 400% increased risk. [1] — Dr. Daniel Amen "A Mayo Clinic study showed people on a fat-based diet (fish, avocado, nuts) had 42% less Alzheimer's risk, while those on a standard Americ…" 1:09:15 The mechanism is the insulin-diabetes type 3 hypothesis: chronic high blood sugar makes blood vessels brittle and prone to rupture, slowing healing and vastly increasing stroke risk. And having a stroke increases Alzheimer's risk tenfold. Fat cells themselves produce adipokines — inflammatory molecules that further damage the brain. Amen cites his 33,000-person study confirming that as body weight rises, brain size and function fall. He is not fatphaming, he insists — he is reporting science. For those designing a brain-protective diet, he favours a paleo approach with healthy fats, quality protein, and an abundance of plants over pure keto, which he worries may be insufficiently plant-diverse for a healthy gut microbiome.
A Mayo Clinic study found that people who primarily ate a fat-based diet (fish, healthy oils, avocados, nuts) had a 42% lower risk of developing Alzheimer's disease.
A Mayo Clinic study found people eating a primarily simple carbohydrate diet (bread, pasta, sugar) had a 400% increased risk of getting Alzheimer's disease versus those on a fat-based 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.
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