Let's talk about sneezing.

[Jenny A]

There's a name for it: photic sneeze reflex. It probably has to do with proximity of the optic nerve and nerves at the top of the nasal passage. Spill over from the optic to the nasal nerves triggers the sneezes.

"Today, scientific attention has mainly focused on a hypothesis proposed in 1964 by Henry Everett, who was the first to call light-induced sneezing “The Photic Sneeze Effect.” Since the nervous system transmits signals at an extremely fast pace, Dr. Everett hypothesized that the syndrome was linked to the human nervous system, and was perhaps caused by the confusion of nerve signals. The genetic basis of photic sneezing still remains unclear, and single genes for this condition have not been found and studied. However, the condition often occurs within families, and it has been suggested that light-induced sneezing is a heritable, autosomal-dominant trait. A 2010 study demonstrated a correlation between photic sneezing and a single-nucleotide polymorphism on chromosome " https://en.m.wikipedia.org/wiki/Photic_sneeze_reflex

My husband has it and so does one of our children.