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[Intro - Spoken]
Yo, let's talk about your brainstem
The part that keeps you alive, no problem

[Verse 1]
Deep in your skull, there's a grape-sized spot
Called the medulla, and it does a lot
Three thousand neurons firing all day
Keeping you breathing in every single way

CO2 levels rising in your blood?
Medulla detects it like a chemical flood
Six point five percent, it hits that switch
Forces you to breathe, no mental glitch

[Chorus]
Medulla oblongata, keeping you alive
Automatic pilot, you don't even try
Breath by breath, twenty thousand times a day
Your brainstem's got you, in every single way

[Verse 2]
Navy SEALs tried to beat the system
Elite breath-holders, but they couldn't resist it
Stanford twenty-twenty-four, they proved it's real
Optogenetics, made the mice not feel

Blue light on - breathing stops in eight
Light turned off - back to normal state
Your medulla's not something you can fight
It's survival coded in your DNA tonight

[Bridge]
So when you're underwater, trying to last
And your body forces you to surface fast
That's not weakness, that's protection mode
Your medulla saving you from the overload

[Outro]
Structure number one, we're just getting started
Sixty-two more regions, never be outsmarted
Medulla oblongata, that's where we begin
The foundation of the brain, from within