Have you ever sneezed in bright sunlight? This is the photic sneeze reflex, which affects around 25 per cent of people. It is caused by the closely connected nerves in the eyes and nose, which trigger a sneezing reflex! Next time someone says, ‘Oh, someone's thinking of you’ when you sneeze, just say, ‘It's just because my brain is wired strangely.’🌞🤧 #SneezingFacts #ScienceFacts via Max Planck Institute for Biological Cybernetics | Max Planck Society

ACHOO ☀️🤧 فرج The photic sneeze reflex (also known as ACHOO syndrome, acronym for Autosomal-dominant Compelling Helio-Ophthalmic Outburst) is an inherited and congenital autosomal dominant reflex condition that causes sneezing in response to numerous stimuli, such as looking at bright lights or periocular (surrounding the eyeball) injection. The condition affects 18–35% of the world's population, but its exact mechanism of action is still not well understood. Bless you 🤍 | Doctor Jules

ACHOO syndrome, or photic sneeze reflex, is when people sneeze in response to bright light, like stepping into sunlight. It’s actually pretty common—about 10-35% of people experience it. Scientists aren’t completely sure why it happens, but it seems to be genetic, meaning if one of your parents sneezes at sunlight, you might too. While it’s harmless, it can be surprising or annoying, especially if it catches you off guard outside or while driving. VC @anabelle.jeann | Mahyar "Max" Maddahali, MD

Everyone from Aristotle to Francis Bacon has wondered, "Why do we sneeze in the sun?" Turns out, finding the answer is more complicated than you might expect ... | Great Big Story