Why Sunlight Makes You Sneeze—Science Still Can't Say

Roughly one in four people involuntarily sneeze when they walk into bright light—and after 2,300 years of noticing it, science still has no settled mechanism or evolutionary reason.A oddly universal everyday glitch that half your audience has felt, almost nobody can explain, and genetics plus nerve-cross-talk papers keep teasing without closing the case—perfect share bait for curious adults.Edw…