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Physiology & Medicine / Why does bright light make me sneeze?
« on: 06/05/2005 23:02:44 »
Sometimes when I am confronted with a sudden change in the brightness of light (for example, when I step outside a building on a sunny day) I sneeze. Sometimes I will achieve as many as three strong sneezes but this ceases as soon as my eyes adjust to the increased light. I know a few other people who have told me that they frequently have this experience, including my mother (genetic?). There seem to be many more persons in my circle of acquaintances who have never had this experience and, when I speak of it, they think me to be really quite mad. Is there a scientific explanation for this or, as some suspect, I am actually mad.