This is really cool and echoes earlier human studies that found Toxoplasma infection "may make people look more attractive to the opposite sex": https://www.earth.com/news/parasite-makes-infected-people-lo...

Is this because it increases risk-taking behavior? Who knows, but it's interesting that something with potentially significant health drawbacks may have enough benefits that it's evolved to coexist with us (up to 50% of people carry it).