Researchers studied the health records of 45,000 Danish women. They learned women infected with the parasite toxoplasma gondii, normally carried by and caught from pet cats, were 50% more likely to commit suicide, often by violent means. Causality is implied but not proven.
The Global Post article doesn't say there is a treatment for toxoplasma gondii. Be careful cleaning kitty's litter box, rubber gloves are indicated. The parasite is said to cause changes in the human brain ... gross.
