Photic Sneeze Reflex

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Sneezing evoked by strong light, which occurs in ± 25% of the population, especially whites
Aetiology Unknown; the trigeminal nerve nucleus may play a central role

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AATH A I refl alternat THIS is the photic sneeze reflex.

that tide. about At so the is Q How it's does ironing work? brain - A ATH A; SCIENTIST ANSWERS YOUR QUIRKY QUESTIONS

Up to 35 per cent of the population have a photic sneeze.

The Doctor; Doctor Gareth Smith is here to answer all your health queries. Write to him at Dr Gareth, Sunday Mail, One Central Quay, Glasgow G3 8DA. Email g.smith@sundaymail.co.uk

Is finding the single-nucleotide polymorphism (SNP) associated with the photic sneeze reflex that makes people sneeze when going from darkness to light groundbreaking research?

Social media and genomics

It is known as the photic sneeze reflex and whether you have it is determined by your genes.

PROFESSOR SCIEHCE

AROUND 37 per cent of people have a photic sneeze reflux - which means exposure to bright sunlight makes them sneeze.

DID YOU NOSE? BLOW ME.. NOT-TO-BE-SNIFFED-AT FACTS ABOUT OUR HOOTERS

It's called the photic sneeze reflex - or Autosomal Dominant Compelling Helio-Ophthalmic Outburst Syndrome - a tendency to sneeze when suddenly exposed to bright light.