The real reason to learn a second language: - Bilingual kids have lower vocabulary in each language than monolingual kids, practice volume matters - Google Translate is not Google Relate, fluency builds real human connection - The struggle itself is the point: forcing your brain to work builds cognitive flexibility - Immersion + motivation = fastest path to fluency Dr. David Eaglemen (@davideagleman) on @hubermanlab

Why curiosity is a prerequisite for long-term memory: - Brain plasticity spikes when curiosity and engagement are present - That neurochemical cocktail makes information stick long-term - Old model: teacher dumps info you may never need (Battle of Hastings, 1066) - New model: kids get answers the moment they want them, retention is far higher - Access to TED Talks, search, and AI means knowledge compounds faster than ever @davideagleman on @hubermanlab

.@jockowillink's take on detachment in problem solving: - Step outside the problem before you try to solve it, you can't see clearly from inside it - Most problems only need a small adjustment, detachment shows you where - "Roger that. No factor. Move on." Save reactions for what actually matters @hubermanlab

The single most important skill for any artist: - Know how you feel, even when everyone around you disagrees - If the room says A and it sounds like B to you, call it B - Limiting your choices forces better problem solving (ex: only use red and green) - Infinite options do not lead to better work, constraints do - Your job is not to be right for everyone, it is to show how you see it - Compromising your taste for commercial approval defeats the entire purpose @RickRubin on @hubermanlab

Why exercise order matters: – Do power and strength work first, before any cardio or accessory lifts – Never train to failure before these sets, fatigue makes you practice moving slower – These movements are the most neurologically demanding in your session – Coordination at max speed requires a fully fresh nervous system – If you're feeling fatigued during power work, that's a sign the order is wrong @DrAndyGalpin on @hubermanlab

You're taking the "strangeness of being alive" for granted: – 80,000 years ago, only ~8,000 humans survived on the planet — you descended from every bottleneck that came before – 70,000 generations of people had to meet, connect, and have children just for you to exist – Most people never pause to feel how unlikely (and how fragile) that is – Don't wait for a near-death experience to notice it – Next time you walk the dog, stop and feel it, it can be gone tomorrow @RobertGreene on @hubermanlab

Action is the cure for most of your problems: – Acknowledge what happened: mourn it, celebrate what was, then move on – Get your "gear back on" immediately, don't wait for the feeling to pass – Take action fast, the longer adversity sits unchallenged in your head, the stronger it gets – The action doesn't have to be massive, just forward movement – Do a quick analysis: why did it go wrong, what gate do I need to jump through next time – Then go execute that next step @jockowillink on @hubermanlab

How to tell if you're overtraining (and what to do about it): – Watch for elevated resting heart rate 3-5+ consecutive days – Track HRV, it's more sensitive to training overload than resting heart rate – Loss of motivation to train is itself a warning sign – Never react to a single bad day, look for trends of 5+ days – If hypertrophy is the goal, don't skip, drop to 6/10 RPE and reduce range of motion – Light volume still counts: 3 sets of 10 at 50% keeps you on track and aids recovery @DrAndyGalpin on @hubermanlab

How to actually quit an addiction: - Map your use: when, how much, what triggers it - Find places you never use, build on what already works - Remove easy access: if it's in the cabinet, it has to go - Learn the social skills you were using the habit for - Join a group of people making the same change @KeithNHumphreys on @hubermanlab

Xylitol kills the bacteria that causes cavities: – Streptococcus mutans eats xylitol instead of sugar, but can't produce acid when it does – No acid = no demineralization = no cavities – Xylitol also stops S. mutans from colonizing and forming biofilm on teeth – Reduces gum and soft tissue inflammation – Use xylitol gum or mints immediately after meals – Start with 1-2 mints per meal @hubermanlab

Simple exercise to focus your mind and stop worrying: – Draw a line down the middle of a piece of paper – Left side: everything you're concerned about (world events, opinions, outcomes) – Right side: everything you can directly influence – The right side will almost always have just one thing: yourself – Break "yourself" down: how you think, how you speak to yourself, how you plan your day – Do this exercise once a month, or whenever sticky thoughts wake you up at 3am Retired Navy SEAL @AndyStumpf77 on @hubermanlab

The question that reveals what you actually want to do: – Instead of "what would you do if you couldn't fail?" ask, "what would you do if you knew you we're going to fail?" – Use it as a litmus test: the moment you wish you were doing something else, you're off target – Collect great questions from books, magazines, interviews, anywhere – Store them in notes, Evernote, or journals and revisit them regularly @tferriss on @hubermanlab

You already have everything you need, you're just refusing to use it. – Stop waiting for a Rocky moment, real hard work looks like a dungeon, not a highlight reel – Motivation fades with age; discipline is what remains – Build your identity from the inside, no role models required – The "pipe dream" becomes real only through relentless, unglamorous repetition – You know the truth already, no seminar will give it to you @davidgoggins on @hubermanlab

How this affects the brain: "Exercise improves brain health in the long term, through the deployment of things like BDNF, through the deployment of things like osteocalcin, and on and on. But it also does so by improving your sleep." "If you're slightly sleep deprived, sure go ahead and exercise. That will actually help you offset some of the negative effects of that sleep deprivation, but you want to be careful how you exercise so you don't get sick and you don't get injured." "You don't want to get into a habit of using exercise as a way to compensate for sleep loss." "After about 10 days of not doing any training, that is no cardiovascular training, no resistance training, you start to see significant decrements in brain oxygenation levels." "Rapid eye movement sleep is the kind of king of reshaping your brain connections for the better. Just a little bit of REM deprivation will make you more emotional and will make the painful experiences of recent and distant past also more painful." "Sleep is the thing that mediates many, not all, but many of the positive effects of exercise on brain performance and long-term brain health." @hubermanlab

8 pillars of a bulletproof immune system: – Nutrition: eat as natural as possible, avoid processed foods – Exercise: mild-to-moderate lowers inflammation (elite-level training increases infection risk) – Water: stay hydrated + use external hydrotherapy (sauna, cold plunge) to activate innate immunity – Sunlight: get outside daily – Temperance: eliminate toxins that suppress immune function – Air: spend time in nature – Rest: 7-8 hrs of sleep improves antibody response and cuts how often you get sick – Trust/Community: stress reduction through connection lowers baseline immune burden Dr. Roger Seheult on @hubermanlab