If you find that whenever you walk out into sunlight, you sneeze, you may be part of around 25% of the population who have a ...

ACHOO syndrome, aka photic sneeze reflex, is relatively harmless but may affect certain careers. What usually makes you sneeze? For most, it's typically dust, pollen, or some other unwelcome invader.

At the age of 19 years, MRI scans were unremarkable but EEG showed spikes over the occipital regions and generalized spike–wave discharges (Figure 1B), enhanced by photic stimulation.

You're not alone, it's called the "photic sneeze reflex," and it's as weird as it sounds. Imagine your nose throwing a party every time the sun shows up. But why does this happen? Is your body ...