Does Everyone Have Photic Sneeze Reflex?

Since childhood, I thought sun sneezes were a malady that everyone encounters. ... An estimated 10 to 35 percent of the population has a photic sneeze reflex. “It's not a disease,” University of California, San Francisco neurologist and human geneticist Louis Ptáček told the NewsHour.

Is photic sneeze reflex rare?

It's a condition characterized by successive sneezing induced by bright light. This is different from a normal sneeze, which is triggered by an infection or an irritant. Photic sneeze reflex affects about 11 to 35 percent of the population, yet it isn't well studied.

How common is ACHOO syndrome?

What is photic sneeze reflex? The photic sneeze reflex, or ACHOO syndrome, is a genetic trait which causes people to sneeze when exposed to bright light. It affects about 17–35% of the world's population and poses very little risk to your health.

David Miller

David Miller

Executive Financial & Market Analyst

David Miller brings 15 years of experience in global economics, personal finance strategy, and market dynamics. He specializes in turning complex economic trends into actionable insights for everyday readers.