The ancient custom of following an “achoo” with a “God bless you” has held steadfast for nearly seven centuries. Is there a religious connection to the practice? “The phrase has a clear religious ...

The sun does more than brighten up the sky. It is the cause of all of our weather, by driving the water cycle. The sun sometimes causes the body to react in weird ways, too. It brightens our moods. It ...

ACHOO syndrome causes uncontrollable sneezing from sunlight, camera flashes, and more. Evidence suggests that scientists have been trying to understand the cause as far back as 350 BCE. ACHOO syndrome ...

Have you ever looked at a bright light or the sun (a pretty bright light) and had to sneeze? If so, you have been blessed genetically with the ACHOO syndrome or photic sneeze reflex (PSR). The acronym ...

As a teenager, Manuel Spitschan discovered that just like his father, if he felt the urge to sneeze, looking at bright light could induce it. What seemed like a funny family quirk is actually rooted ...

Some people sneeze when they look into the sun because of Autosomal Compelling Helio-Ophthalmic Outburst syndrome (ACHOO), or photic sneeze reflex (PSR). It happens when the brain misinterprets a ...

Imagine walking out of a movie theatre into the bright afternoon sun when suddenly you start uncontrollably sneezing! For many people this is a regular occurrence, and there is a reason behind the ...