Long reads.
No clickbait. No AI fluff. Just what I’d say to a friend over coffee, with the science to back it up.
Why is flying east worse than flying west?
Same six time zones, same flight length — one direction leaves you functional by Wednesday, the other has you awake at 4am for a week. The cause is twelve minutes a day.
Read the full article →How to calm your nervous system fast
Told to breathe deeply, most people take a big dramatic inhale — which is precisely the half that speeds the heart up. A Stanford trial compared four methods for a month, and the winner takes five minutes.
Read article →Vagus nerve exercises: do they actually work?
About 80% of the vagus nerve’s fibres carry information upward, from your organs to your brain. That single fact explains both why body-first methods work and why the “reset” videos are nonsense.
Read article →How sleep turns today into memory
You don’t store a memory when you make it. You store a draft. The work that turns it into something you still have in a month happens later that night, while you’re unconscious and not participating.
Read article →What is a good HRV — and can you improve it?
34 one morning, 71 the next. I built theories about both. Neither number meant what I thought — I was reading a thermometer as though it were a grade.
Read article →When to take supplements for sleep and focus
Most supplement disappointment isn’t a dose problem, it’s a clock problem. In one trial, caffeine taken six hours before bed cost an hour of sleep — and the people it happened to never noticed.
Read article →5 mistakes quietly ruining your deep sleep
You can sleep eight hours and still wake up feeling like you didn’t. Every one of these is invisible from the inside — you feel fine at 11pm and unaccountably flat on Wednesday.
Read article →Can you catch up on sleep on the weekend?
One glorious unset alarm on Saturday used to feel like cheating the system. Then researchers ran it properly for nine days — and the weekend-recovery group came out no better protected than the group that never got a weekend at all.
Read article →How many days does it take to adjust to jet lag?
I gave myself two days after an eight-hour eastward flight. The honest number was closer to eight. Here's the resynchronisation rule researchers actually use — and why east costs you double.
Read article →Does exercise before bed ruin your sleep?
I skipped a year of evening sessions because of a rule I'd never checked. Then I found the meta-analysis: evening training doesn't wreck your sleep — it slightly deepens it. Here's the one narrow window that does cost you.
Read article →Can you train your brain to need less sleep?
I spent months quietly proud of running on five hours, sure I'd 'trained' my way there. I hadn't. Here's the sleep-restriction science, the study that settles it, and the broken gauge that makes you feel fine while you fall apart.
Read article →How to get into a flow state faster
Flow isn't a mood you wait for — it's a set of conditions you can set on purpose. Here's the science of what actually flips the switch, and the fastest way in.
Read article →Does background noise help concentration?
I spent years treating silence as the only serious way to work — then a dead-quiet week got nothing done and I started to wonder if I'd had it backwards. Here's the science of noise and attention, and the one distinction that changes everything.
Read article →Why do I lose focus after lunch?
For years I blamed the sandwich. Turns out the 2pm fog is mostly hardwired — a circadian dip that shows up even on the days you don't eat. Here's the science, and how to work with it instead of drowning it in coffee.
Read article →Does napping after learning improve memory?
I used to power through after studying, sure that momentum was the point. Turns out the smartest move was almost embarrassing: lie down. Here's the memory science and the exact nap.
Read article →Does taking a break make you more creative?
Staring harder at a stuck problem almost never solves it. Walking away does — but only a specific kind of break. Here's the incubation science and how to use it on purpose.
Read article →The best bedroom temperature for sleep (and why yours is probably wrong)
I blamed my bad sleep on stress, screens, magnesium — everything except the one thing that turned out to matter most. My bedroom was too warm. Here's the science and the fix.
Read article →How to lucid dream — does it actually work?
Becoming aware you're dreaming, while you're dreaming, sounds like fantasy. But two techniques have actual evidence behind them. Here's how lucid dreaming really works.
Read article →How to fix your sleep schedule in 3 days
A wrecked sleep schedule isn't willpower — it's a clock pointing the wrong way. Here's the 3-day light-and-timing reset that actually shifts it back.
Read article →The L-theanine and caffeine ratio for focus
Caffeine alone gives you the jitters and a 2pm crash. Pair it with L-theanine at the right ratio and you get clean, steady focus instead. Here's the exact dose.
Read article →Mouth taping for sleep: does it actually work?
Everyone on the internet is taping their mouth shut at night. I tried it for three weeks. Here's what the actual research says, who it helps, and who should not touch it.
Read article →How to increase deep sleep — and why going to bed later deletes it
I thought deep sleep was something you got more of by sleeping longer. It is not. Two thirds of it is over before 2 a.m. — here is what actually moves the number.
Read article →How many hours of deep work are actually possible in a day?
I used to block eight hours and call it a focus day. What I was really doing was two hours of work and six hours of moving things around. Here is the honest number.
Read article →What actually causes brain fog — and what to check first
Brain fog is not a diagnosis. It is what several very different problems feel like from the inside. Four of the five most common causes can be measured this week.
Read article →Does blue light before bed really ruin your sleep?
The blue-light filter is the smallest lever in the room. Turning off the ceiling lights does more than any app setting — here is why brightness beats blueness.
Read article →The 90-Minute Focus Block: Why Neuroscientists Say It Beats Pomodoro 3:1
The 25-minute Pomodoro timer is the default for focused work — and wrong for most people's neurobiology. Here's the ultradian-rhythm science and the exact protocol.
Read article →The magnesium thing nobody tells you
I took magnesium for sleep for two years before I figured out why it wasn't working: the wrong form. Glycinate vs oxide vs L-threonate, dose and timing.
Read article →Why ten minutes of sunlight beats your morning coffee
Ten minutes of morning sunlight locks your cortisol peak and gives steady focus for 8 hours. The circadian science — and why to delay coffee 90 minutes.
Read article →Three minutes at ten degrees
Cold exposure drives a large, sustained dopamine rise that lasts for hours — with zero crash. The protocol, the temperature, and how to start with just your tap.
Read article →The twelve-minute walk that flattens your blood sugar
Twelve minutes of walking after a meal meaningfully blunts the post-meal glucose spike. The mechanism, my own CGM data, and the behavior-design trick to actually do it.
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