Brain Freeze and Hiccups: The Surprising Science of Everyday Bodily Glitches
Almost everyone has experienced the sudden, sharp ache in the forehead after gulping an icy drink on a sweltering summer afternoon. Just as familiar is the annoying, repetitive spasm of a hiccup that strikes out of nowhere and disrupts a quiet classroom or a conversation with friends. While both sensations can feel startling and uncomfortable, they are entirely harmless physiological reactions. By examining the intricate wiring of our nervous system and the mechanics of our muscular anatomy, we can understand why these sudden body glitches happen and how to resolve them.
The Anatomy of a Brain Freeze
Scientifically known by the tongue-twisting name sphenopalatine ganglioneuralgia, brain freeze is a rapid-onset headache triggered by consuming cold substances such as ice cream, frozen slushies, or iced beverages too quickly. Despite its common name, your actual brain tissue does not freeze at all; in fact, brain tissue itself lacks pain receptors. Instead, the sensation originates at the roof of your mouth, also called the palate.
- constrict:
- To become narrower, tighter, or smaller.
- dilate:
- To become wider, larger, or more open.
- palate:
- The roof of the mouth that separates the oral cavity from the nasal cavity.
- diaphragm:
- A large, dome-shaped muscle located beneath the lungs that controls breathing.
- glottis:
- The opening between the vocal cords in the throat.
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Preview questions from this passageShowHide
- 1Why does actual brain tissue not experience pain during a brain freeze?
- 2What physiological process occurs in the blood vessels of the palate when exposed to cold foods?
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About this informational passage for Middle School
“Brain Freeze and Hiccups: The Surprising Science of Everyday Bodily Glitches” is a informational reading passage about Human Physiology, written for Middle School. It takes about 7 minutes to read (990 words) and comes with an interactive quiz and a printable worksheet with comprehension questions and an answer key.