Why Do You Sneeze in the Sun

The video explores the phenomenon of sun sneezing, known as the photic sneeze reflex (PSR). It discusses historical and modern theories about its cause, including Aristotle's and Francis Bacon's ideas, and the current understanding involving the trigeminal and optic nerves. Although PSR is not a disease, understanding it could provide insights into more serious conditions like epileptic seizures and migraines.

What is another name for the photic sneeze reflex?

• Optic sneeze disorder

• Bright light reflex

• Sunlight syndrome

• Achoo syndrome

Which philosopher incorrectly theorized that the sun's heat causes sneezing?

• Plato

• Aristotle

• Socrates

• Descartes

What was Sir Francis Bacon's theory about the cause of sneezing when exposed to sunlight?

• The sun's heat irritates the nose

• Tears from the eyes trigger sneezing

• The sun's rays directly stimulate the nose

• The brightness of the sun causes a reflex

Which nerve is primarily responsible for detecting irritants that cause sneezing?

• Optic nerve

• Facial nerve

• Vagus nerve

• Trigeminal nerve

Understanding PSR might help in gaining insights into which other conditions?

• Allergies

• Epileptic seizures and migraines

• Common cold

• Asthma