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Why Crying Makes Your Nose Run, a free science course on Tomo

Why Crying Makes Your Nose Run

Discover the hidden facial plumbing that links emotional tears directly to your runny nose. Learn how your tear ducts work, why tears liquefy mucus, and the biological purpose behind a messy cry.

Like Duolingo, but for Why Crying Makes Your Nose Run. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.

A short one: 9 levels across 2 sections, about 18 minutes end to end, roughly 4 days at five minutes a day. It moves through The Hidden Plumbing and The Emotional Overflow. It starts from scratch.

9 bite-size levelsAbout 5 minutes each

Free forever · No credit card · iPhone & Android

Professor Pipette the Pelican, the guide who teaches the Why Crying Makes Your Nose Run course
Why Crying Makes Your Nose Run
with Professor Pipette the Pelican
9
Levels
2
Sections
5
Min/day
What you'll learn

Key ideas in Why Crying Makes Your Nose Run

  • Fluid leaking from your nose during crying is largely the overflow of tears traveling through an internal facial drain
  • Your nasal lining mixes in a small amount of moisture, but the sudden volume comes directly from your eyes, not newly manufactured snot
  • Each eyelid has a tiny visible opening called a punctum near the inner corner by the nose
  • These openings act like miniature sink drains that constantly pull fluid off the eye
  • Tears first enter through the small punctum holes at the corner of the eyelids
  • The fluid travels down through a narrow internal tube (the nasolacrimal duct) beside the nose bone
  • The duct empties directly into the lower nasal cavity, letting fluid spill into the nostrils
  • Your eyes produce a baseline level of tears all day long that continuously drain into your nose
  • Normal breathing pulls air across this steady moisture, quietly evaporating it to help keep nasal passages humid
  • Heavy sobbing makes the main tear gland produce fluid far faster than the tiny eyelid drains can swallow
  • Because the drains cannot keep up, tears spill over the lids and run down the cheeks
  • The volume that does enter the drain overpowers the nose's ability to evaporate it, causing a rapid, watery runny nose
  • Excess tears drain from the inner corners of the eyes straight into the nasal cavity through tear ducts
  • Normal nasal mucus sits as a thick, sticky protective gel
  • The rush of watery tears rapidly thins this resting mucus into a fast-running liquid
  • Warm tear fluid entering the nose triggers local blood vessels in the nasal tissue to expand and dilate
Why not just Google it

You've tried the other tabs

Wikipedia

Thirty open tabs. Four facts you actually kept.

YouTube

You watched. You nodded. By Sunday it was gone.

ChatGPT

One answer, then back to scrolling.

Online courses

Eight weeks. You meant to finish. You didn't.

Tomo gives Why Crying Makes Your Nose Run 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.

Try a question

Here's what playing it feels like

A real question from this course. Take your best guess.

Where Your Tears Actually Go

Where does the sudden rush of liquid in your nose come from when you sob?

Get it right to open this lesson and 8 more in the app.

Course map

Where Why Crying Makes Your Nose Run takes you

  1. 1

    The Hidden Plumbing

    • Tracing the Facial Drain
    • The Snot Multiplier Effect
  2. 2

    The Emotional Overflow

    • Why Emotional Crying Floods the Circuit

2 sections · 3 units · 9 levels. Built to play, not to enroll.

New

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How it's taught

You pick the voice

This course
The Professor

Why Crying Makes Your Nose Run is taught in the Professor style: clear, structured, thorough. 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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