Ever wonder why the relationship always starts to fall apart after you move in together? Do you have cats? The News of the Weird may have your answer:
"Renewing a debate, Czech scientist Jaroslav Flegr reported in September that human infection by Taxoplasma gondii (to which cat owners are vulnerable as they clean litter boxes) tends to make women "reckless" and "friendly" and men "jealous" and "morose." Though any mammal could pass the toxins, cats that handle dead birds, bugs or mice rather easily pass it in their stools, though only for a few days after their first infection. (A 2001 report by researchers from Johns Hopkins and the University of Maryland had suggested that such infections might even cause schizophrenia and bipolar disorder.) [New Zealand Herald-Reuters, 9-23-03] "