Mouth to Stomach
Gut-Brain Connection
Stress and Food
Myth or Fact
Mental Health & the Gut
100

This is where digestion begins.

Answer: What is the mouth? 

Saliva contains enzymes that start breaking down food immediately.

100

This nerve connects your brain and digestive system.

Answer: What is the vagus nerve?

 It sends signals both directions.

100

When you skip meals and feel irritable, this slang term describes it.

Answer: What is hangry?

 Blood sugar affects mood.

100

Myth or Fact: Digestion only happens in your stomach.

Answer: What is myth?

Most absorption happens in the small intestine.

100

This everyday habit can reduce anxiety symptoms, prevent headaches, improve focus, and support digestion — yet many teens don’t do enough of it.

Anxiety: What is drinking water (hydration)?


Dehydration can mimic panic symptoms: dizziness, rapid heart rate, headache, fatigue. Sometimes regulation starts with water.

200

This tube moves food from your mouth to your stomach using muscle contractions.

Answer: What is the esophagus?

Those wave-like movements are called peristalsis.

200

About 90% of this mood chemical is made in your gut.

Answer: What is serotonin?

 SSRIs can cause GI side effects at first.

200

This nutrient helps stabilize mood and prevent crashes.

Answer: What is protein?

 Protein slows glucose spikes.

200

Myth or Fact: Stress can cause diarrhea.

Answer: What is fact?

 Stress speeds up gut movement.

200

This mental health condition can increase emotional eating.

Answer: What is depression?

300

This acid in your stomach helps break down food and kill bacteria.

Answer: What is stomach acid (hydrochloric acid)? 

Stress increases stomach acid production.

300

When you’re anxious and feel butterflies, this system is activated.

Answer: What is the fight-or-flight (sympathetic nervous system)?

 Digestion slows during stress.

300

Drinking too much of this can increase anxiety and stomach acid.

Answer: What is caffeine?

 Energy drinks = double hit (anxiety + GI upset).

300

Myth or Fact: Skipping breakfast improves focus.

Answer: What is myth?

 Brain needs glucose to function.

300

This coping skill can calm both your stomach and brain.

Answer: What is deep breathing?

 Activates parasympathetic system.

400

This muscle keeps stomach contents from coming back up.

Answer: What is the lower esophageal sphincter?

 Anxiety + caffeine can worsen reflux.

400

This is why you might feel nauseous before a big test.

Answer: What is stress shutting down digestion?

 Body thinks survival > digestion.

400

Dehydration can mimic this mental health symptom.

Answer: What is panic/anxiety?

Dizziness + fast heart rate ≠ always panic.

400

Myth or Fact: Your gut and brain communicate constantly.

Answer: What is fact?

 Bidirectional communication.

400

This body system is known as “rest and digest.”

Answer: What is the parasympathetic nervous system?

500

Digestion can take this many hours from start to finish.

Answer: What is 24–72 hours?

 Yesterday’s eating can affect today’s mood.

500

Chronic anxiety is commonly linked with this GI condition.

Answer: What is IBS (Irritable Bowel Syndrome)?

 Mental health and gut health overlap a lot.

500

Eating too quickly can cause this uncomfortable feeling.

Answer: What is bloating or stomach pain?

 Slow eating helps nervous system regulation.

500

Myth or Fact: Mood problems are always “just in your head.”

Answer: What is myth?

Teaching Point: Sleep, food, hydration all affect mood.

500

When this system is activated, your heart rate increases, digestion slows down, and your body prepares to deal with danger.

Answer: What is the sympathetic nervous system (fight-or-flight)?


When we live in chronic stress, digestion is constantly disrupted. That’s why managing stress improves both mood and stomach issues.

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