Close A new study recently suggested that the parasite called "Toxoplasma gondii," which duplicates in cats and most frequently spreads through humans by means of raw meat, may increase the danger of having brain cancer in humans. According to a Live Science report, this said finding now serves as "another reason for people to cook meat and take care around cat litter." In their work, the study authors found a relationship between the presence of T. gondii antibodies in the blood of people, specifying past exposure to the parasite, as well as the development of glioma, the most typical brain cancer type, after several years.