A closer look
Toxoplasma gondii is a microscopic parasite that typically reproduces inside the intestines of cats, but it has a surprisingly profound impact on the human brain. When humans are infected, usually through undercooked meat or feline exposure, the parasite subtly alters neurotransmitter levels. Studies suggest this silent infection can actually make humans more impulsive, drastically increasing risk-taking behavior and even raising the statistical likelihood of being involved in a traffic accident.
