Joined February 2009
674 Photos and videos
Henri Sader retweeted
“If you only read the books that everyone else is reading, you can only think what everyone else is thinking.” — Haruki Murakami
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Henri Sader retweeted
🚨 The ultra-processed food reckoning is here — and your protein shake might be part of the problem. Isolated protein powders promise muscle & fullness. But they deliver a metabolic dud. Why? They strip away the food matrix — the natural fiber, fats, and compounds that slow digestion, trigger powerful gut peptides (like GLP-1 and PYY), and create true satiety. Result? Fast-absorbing aminos, blood sugar spikes, less fullness, and you’re hungry again soon. Whole foods win. The fix that actually works: Pair quality protein with complex fiber (veggies, berries, oats, beans, sprouted grains). This combo optimizes gut hormone release, steadies energy, and crushes cravings naturally. Your body knows the difference. #GutHealth #ProteinMyths #RealFood
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1/2 who is stealing your socks 🧦 😅 Not the universe-Scientists actually created the "Sock Loss Index" formula: Loss =(Laundry Size Complexity) - (Attitude x Attention) So, If you hate chores & just cram everything in, you've created a black laundry hole. The worst part? 👇
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2/2You lose 1.3 socks a month. That’s 15 single socks a year crying for their partners.They aren't in another dimension; they're stuck in your machine's rubber seal or trapped inside a fitted sheet. How to beat the math?: use mesh bags so they can't escape! 😅#LaundryHacks
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Henri Sader retweeted
Dragonflies fun facts - Just one dragonfly can consume over 100 mosquitos in a day - Dragonflies can fly backwards - They have nearly 360° vision - Their wings inhibit bacterial growth due to their natural structures - They're actually beautiful

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Henri Sader retweeted
"Twisted Chrysanthemum Joint," a Japanese woodworking technique that interlocks wood pieces without nails or glue

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Henri Sader retweeted
The so-called “calculator riots” of 1986 serve as a powerful reminder that today’s anxieties about artificial intelligence replacing human thinking are far from new. In April 1986, a determined group of math educators staged a vocal protest outside the National Council of Teachers of Mathematics (NCTM) annual convention in Washington, D.C. Led by influential textbook author John Saxon, demonstrators carried signs declaring, “The Button’s Nothin’ ’Til the Brain’s Trained.” They were opposing the NCTM’s new recommendation to incorporate electronic calculators into mathematics education at every grade level, including homework and exams. The protesters worried that reliance on calculators would erode students’ mental arithmetic skills, numerical intuition, and deep conceptual understanding, potentially creating a generation of “calcuholics” overly dependent on machines. The NCTM countered that calculators would free students from repetitive, low-level calculations, enabling them to tackle more complex problem-solving and higher-order thinking. Ultimately, the debate led to a pragmatic compromise: students would first master core mathematical concepts and mental strategies before using calculators as tools for more advanced work. This balanced approach allowed technology to enhance, rather than replace, mathematical reasoning. Today, as schools navigate the rapid rise of generative AI, the 1986 calculator compromise offers a valuable blueprint: prioritize genuine understanding first, then thoughtfully integrate powerful new tools.
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Ce n'est pas l'erreur qui est fascinante. C'est la vitesse avec laquelle la certitude l'accompagne! 😁👌
Daniel Kahneman - the psychologist who won a Nobel in economics - spent his life proving one thing: your confidence is lying to you A bat and a ball cost $1.10. The bat costs $1 more than the ball. The answer "10 cents" jumps to mind instantly. It's wrong (it's 5 cents) - and ~50% of students at Harvard, MIT and Princeton say it without checking. That gap is his whole point: the fast, intuitive mind builds a clean story from almost nothing, and the feeling of certainty has nothing to do with being right. "Confidence is a feeling, not a judgment." "Stock pickers can't develop intuition - there isn't enough regularity for it to form." "You can build a very coherent story out of very little information." ~45 min, free. how your mind fools you - from a man who studied it for 50 years ↓
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Henri Sader retweeted
As a physician, this study still blows my mind. Physical activity is 1.5 times more effective than counseling or leading medications for reducing symptoms of depression, anxiety, and psychological distress. And the best part? Every type of movement works — walking, yoga, Pilates, resistance training, or aerobic exercise. No fancy equipment required. Your brain and body thrive when you move. It’s free, accessible, and comes with zero side effects (plus massive physical health bonuses). If you’ve been feeling low, foggy, or overwhelmed — start small. A 10-minute walk can be the beginning. Also, be aware that exercise alone isn't always a cure for depression, as it's a complex condition. But it can be PART of the treatment. Source: Exercise more effective than medicines to manage mental health, study shows. ScienceDaily. Published 2023. Accessed March 7, 2026. ‌ #ExerciseIsMedicine #MovementForMentalHealth
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Henri Sader retweeted
A promising noninvasive therapy using synchronized light and sound may help the brain clear toxic proteins associated with Alzheimer’s disease. In a groundbreaking study involving researchers from MIT, Boston University, and Westlake University, scientists have shown that exposing mice to 40-hertz flashing lights and auditory tones can powerfully activate the brain’s natural waste-clearance system, the glymphatic system, dramatically reducing harmful amyloid plaques. The sensory stimulation induces gamma brain waves that trigger a specific chain reaction: inhibitory interneurons release vasoactive intestinal peptide (VIP), which prompts astrocytes to expand and increase the flow of cerebrospinal fluid. This enhanced fluid circulation flushes out toxic proteins and cellular debris that accumulate in Alzheimer’s. When researchers blocked either the astrocytes’ response or the release of VIP, the plaque-clearing effect disappeared, confirming the precise biological pathway involved. With more than 7 million Americans currently living with Alzheimer’s, a disease projected to cost the U.S. healthcare system over $400 billion annually, this approach is particularly exciting because it is completely noninvasive and could be relatively easy to implement. While still in the preclinical stage, the results suggest that 40 Hz sensory stimulation could become a safe, accessible tool to help maintain the brain’s “plumbing” and potentially slow or prevent the progression of Alzheimer’s and other neurodegenerative diseases. This research highlights a novel way to harness the brain’s own waste-removal mechanisms rather than relying solely on pharmaceutical interventions. [Murdock, M. H., et al. (2024). Multisensory gamma stimulation promotes glymphatic flow and clears amyloid in Alzheimer’s mouse models. Nature. DOI: 10.1038/s41586-024-07132-6]
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Henri Sader retweeted
In 1880, a reclusive, self-taught telegraph operator with no university degree went to war with the greatest scientific minds in the British Empire. He won, changed the mathematics of physics forever, and quietly built the foundation for the entire modern electrical grid. Yet today, almost no one outside of electrical engineering and applied mathematics even knows his name. His name was Oliver Heaviside. The story of how he solved one of the hardest engineering problems in human history is a masterclass in why book smarts fail where deep, messy intuition succeeds. In the late 19th century, the world was trying to lay massive underwater telegraph cables across the Atlantic Ocean. But they had a crippling problem: the signals kept distorting. You would type a message in London, and by the time it reached New York, it was a smeared, unreadable mess of electricity. The top physicists of the day, using traditional university math, said the solution was simple: make the cables purer and reduce resistance. They spent millions of dollars trying to make the lines perfect. It didn't work. The signals still broke. Heaviside looked at the exact same problem from his messy, self-taught perspective and realized the elite academic establishment was blind. They were treating an electrical wire like a water pipe. They thought the electricity was inside the copper. Heaviside figured out that electricity doesn’t flow inside the wire; it flows in the electromagnetic field around the wire. Then, he did something that made mainstream mathematicians furious. He invented a bizarre shortcut called operational calculus. Instead of spending weeks solving complex, multi-page differential equations to map these fields, he treated calculus like basic algebra. To the professors at Cambridge, this was a sin. They called his math clumsy, unrigorous, and nonsense. Heaviside didn't care. His famous response to them was: "Should I refuse my dinner because I do not fully understand the process of digestion?" He used his illegal math to propose a mind-bending solution: to fix the distorted signal, engineers didn't need to make the cable cleaner. They needed to deliberately add more corruption to it. He suggested wrapping the cables in iron wire to introduce "inductance", intentionally fighting one distortion with another. The establishment ignored him for years. But when AT&T finally tried his method, the results were instant. Long-distance communication was solved. Heaviside wasn't trying to pass a math exam or impress a peer-review board. He wanted to solve a real-world problem. In the process, he took James Clerk Maxwell’s famously complex 20 equations of electromagnetism and condensed them into the 4 beautiful formulas that every single physics student is forced to memorize today. Heaviside did the heavy lifting, but Maxwell got the name. The lesson Heaviside left behind is a philosophical blueprint for navigating a complex world: The people who memorize the proper formulas are excellent at solving textbook problems. But they are entirely dependent on the rules staying the same. The people who understand the underlying system don't care about the rules. They break them to find what actually works. Most of us approach our life's problems like the 19th-century British establishment. When something goes wrong in our career or relationships, we try to make our existing wire purer. We try harder at a broken method. But sometimes, the problem isn't that you aren't trying hard enough. The problem is that you are looking inside the wire instead of looking at the field around it. What is a distortion in your life right now that you keep trying to fix with the standard advice? What happens if you stop trying to follow the textbook formula and start looking at the hidden forces causing the noise?
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Trump’s win-lose cryoto playbook: Family makes $2.3 billion, retail investors lose $2.3 billion. Unless your Robinhood account is secretly a defense contractor or a Big Oil conglomerate, you aren't getting that refund. 🪙🛢️🚀 #Omen reuters.com/investigations/u…
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Henri Sader retweeted
So the universe is not quite as you thought it was. You'd better rearrange your beliefs, then. Because you certainly can't rearrange the universe. - Isaac Asimov (1920 - 1992)
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"In life you'll meet a lot of jerks. If they hurt you, tell yourself that it's because they're stupid. That will help keep you from reacting to their cruelty. Because there is nothing worse than bitterness and vengeance... Always keep your dignity and be true to yourself!" - Marjane Satrapi, Persepolis Marjane Satrapi, the acclaimed Iranian-French writer and filmmaker best known for Persepolis, died in Paris on June 4, 2026, at the age of 56. According to her family, she passed away after being overcome by grief following the death of her husband, Mattias Ripa, in 2025. Satrapi’s work brought her international recognition through its powerful portrayal of life in post-revolutionary Iran, and her death has prompted tributes from across the literary, artistic, and film worlds.
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Henri Sader retweeted
🪠 How to Clean Your Brain (Literally) — New Research I’m always excited by simple ways to protect brain health. New Penn State research in Nature Neuroscience reveals a built-in “hydraulic pump”: Your brain gently sways with movement, acting like a rinse cycle that flushes cerebrospinal fluid through brain tissue to clear metabolic waste (the stuff linked to cognitive decline). Here’s how the brain pump works: • Abdominal/core contractions increase pressure in spinal vessels. • This creates rhythmic swaying of brain tissue. • The motion squeezes fluid through the brain — like wringing out a dirty sponge. Best part? No gym required. Everyday movements trigger it. Brain Flush Protocol — 3 Easy Ways: Rhythmic Walk — 10 minutes brisk walking. Steps natural core engagement optimize the sway. Micro-Bracing — When you stand from sitting, lightly engage your abs. Small but powerful pressure shift. Standing Desk Shifts — Shift weight side-to-side or do occasional calf raises. Keeps the pump active all day. Pro Tip: Pair with diaphragmatic breathing — it amplifies thoracic pressure changes for even better flow. Small daily movements aren’t just exercise — they’re brain maintenance. Protect your cognition one step (and brace) at a time. Have you noticed clearer thinking after walks? What’s your favorite low-effort movement habit? 👇 #BrainHealth #Neuroscience #Longevity Source: Guenette, J. P., et al. (2024). Body-to-brain hydraulic signaling flushes the neural interstitium. Nature Neuroscience.
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