13D ago
4 sources
The article compiles evidence that Toxoplasma gondii can be present in semen, correlates with sexual practices, and shows couple‑level transmission asymmetries consistent with male‑to‑partner spread. It also reviews human behavioral changes (slower threat response, altered jealousy, increased sexual partners) that may advantage the parasite’s transmission.
— If a common brain‑infiltrating parasite is sexually transmissible and behavior‑shaping in humans, sexual‑health guidance, road‑safety risk models, and even criminology and mental‑health debates must incorporate parasitology rather than treating outcomes as purely social or psychological.
Sources: Are parasites messing with our brains?, Round-up: The creativity decline, Microbes may hold the key to brain evolution (+1 more)