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Your visual cortex burns 44% of your brain's energy budget. Turning off the lights in the shower is the fastest way to slash that load to near zero.
Your brain is 2% of your body weight but burns 20% of your total energy. Visual processing alone eats almost half of that. Every photon hitting your retina triggers a cascade of neural signaling that demands oxygen, glucose, and ATP at rates higher than almost any other cognitive function.
When you kill the lights, you're removing the single largest energy load on your cortex. That freed-up metabolic capacity gets reallocated.
This is where it gets interesting. A 2022 study from the Laureate Institute for Brain Research measured what happens when you strip sensory input from anxious patients. High-frequency heart rate variability, the gold standard marker of parasympathetic activation, increased significantly compared to controls. Blood pressure dropped. Breathing rate fell. The nervous system shifted from sympathetic dominance to parasympathetic mode within minutes.
The warm water adds a second mechanism. Core body temperature rises during the shower. When you step out, temperature drops rapidly. That cooling signal triggers melatonin production and primes the circadian system for sleep. Layer darkness on top: no photons suppressing melatonin through the retinal ganglion cells, no blue-light signaling to the suprachiasmatic nucleus that it's still daytime.
The shower is doing three things simultaneously. Reducing cortical energy demand by eliminating visual input. Activating the parasympathetic nervous system through sensory reduction. Triggering thermoregulatory sleep signaling through the heat-then-cool cycle.
A $0 float tank that takes 10 minutes.
GRITCULT@GRITCULT
Take a shower in the dark.
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Konuştuğum MHP Genel Merkez kaynakları, İzzet Ulvi Yönter’in istifasının bizzat MHP Genel Başkanı Devlet Bahçeli tarafından istendiğini ve görevden alındığını doğruladı.
Muhammed Vefa@muhammedvefa
Olay şu; Cevheri Güven'e bilgi sızdıran kişiye yönelik bir tweet... MHP'de konuşulan bazı konuların sızdırıldığı ve bu kişinin genel merkeze yakın bir isim olduğu söyleniyor.
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Another place to watch the BiBi Files without a paywall.
archive.org/details/the-bi…
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A MIT professor taught the same lecture every January for 40 years, and every single time it was standing room only.
I watched it at 2am and it completely rewired how I think about communication.
His name was Patrick Winston. The lecture is called "How to Speak."
His opening line hit like a truck: your success in life will be determined largely by your ability to speak, your ability to write, and the quality of your ideas in that order.
Not your GPA. Not your pedigree. Not your IQ. How you speak is what separates people who get heard from people who get ignored.
Here's the framework he drilled into MIT students for four decades.
He said never start with a joke. Start by telling people exactly what they're going to learn. Prime the pump before you pour anything in. He called it the "empowerment promise" give people a reason to stay in their seats within the first 60 seconds.
Then he broke down the 5S rule for making ideas stick: Symbol, Slogan, Surprise, Salient, and Story. Every idea worth remembering hits at least three of these.
The part that floored me was his "near miss" technique. Don't just show what's right show what almost looks right but isn't. That contrast is when the brain actually locks something in permanently.
His final rule before any big talk: end with a contribution, not a summary. Don't recap what you said. Tell people what you gave them that they didn't have before they walked in.
I've used this framework in pitches, interviews, and presentations ever since watching it, and the results are not subtle.
Patrick Winston passed away in 2019, but this lecture is still free on MIT OpenCourseWare. One hour, watched by millions, and it costs absolutely nothing.
The most important class MIT ever put on the internet isn't about code or math. It's about how to make people actually listen to you.

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