How Your Brain Runs Your Body
Understand the hidden biological signals that control your daily focus, mood, and stamina. Learn how your nervous system talks to your organs and how to use simple physical levers to feel better every day.
Like Duolingo, but for How Your Brain Runs Your Body. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.
A short one: 12 levels across 2 sections, about 24 minutes end to end, roughly 5 days at five minutes a day. It moves through Taking the Controls and Reading the Feedback Loops. It starts from scratch.
Free forever · No credit card · iPhone & Android
Key ideas in How Your Brain Runs Your Body
- Morning sunlight hitting your eyes triggers a neural timer that dictates when melatonin releases roughly 12 to 14 hours later
- Indoor window glass filters out much of the light intensity needed to reset the brain's circadian clock
- Melatonin stays suppressed during daylight so daytime alertness remains steady
- Caffeine only temporarily masks adenosine receptors rather than eliminating the sleep chemical
- Waiting 60 to 90 minutes after waking allows the brain to clear leftover residual adenosine naturally
- Drinking coffee right away creates a steep crash hours later once caffeine detaches from receptors
- The brain's circadian rhythm naturally drives a dip in core body temperature roughly 7 to 8 hours after waking
- A drop in core body temperature naturally promotes drowsiness independent of food intake
- Carbohydrate-heavy lunches can amplify the slump, but they do not cause it
- Muscular contraction produces metabolic heat that elevates internal body temperature
- Rising body temperature serves as a primary physical alarm signal to the brainstem
- Neural wakefulness systems activate much faster in response to physical heating than to mental effort alone
- Bright overhead light mimics midday sun and actively blocks the pineal gland from releasing melatonin
- Low-angle, dimmer lighting mirrors sunset and allows the natural wind-down cascade to begin hours before bed
- The eyes have specialized cells located in the lower retina that are especially sensitive to light coming from above
- The sympathetic branch acts like an accelerator, driving alertness, energy, and rapid action
You've tried the other tabs
Thirty open tabs. Four facts you actually kept.
You watched. You nodded. By Sunday it was gone.
One answer, then back to scrolling.
Eight weeks. You meant to finish. You didn't.
Tomo gives How Your Brain Runs Your Body the Duolingo treatment: levels, streaks, and quick quizzes that test what you just learned. That game loop is what the tabs above never had, so it's the one you actually finish.
Here's what playing it feels like
A real question from this course. Take your best guess.
Why is standing outside better than sitting by a closed window to set your daily clock?
Get it right to open this lesson and 11 more in the app.
Where How Your Brain Runs Your Body takes you
- 1
Taking the Controls
- Setting Your Daily Alertness Clock
- Steering Your Nervous System on Demand
- 2
Reading the Feedback Loops
- Listening to the Gut-Brain Connection
- How Sleep Cleans and Repairs the Brain
2 sections · 4 units · 12 levels. Built to play, not to enroll.
Tomo is in ChatGPT
Tomo is also a ChatGPT plugin: the same playable courses, built and played inside your chat.
Add Tomo to ChatGPT- What to ask
- “Make me a Tomo course on black holes.” “Turn this chat into a Tomo course.”
- What you get
- Quick questions with instant feedback, hearts and stars, ready to play in about a minute.
- Where it goes
- No sign-up to start. Connect your Tomo account and your streak carries on in the app.
You pick the voice
How Your Brain Runs Your Body is taught in the Bestie style: your friend who just gets it. Want a different feel? In the app you can spin up the same topic in any of Tomo's teaching styles. Same facts, totally different vibe.
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Start How Your Brain Runs Your Body today.
Download Tomo, search How Your Brain Runs Your Body, and play your first lesson in under a minute.