zlacker

> Results showed that an individual infected with T. gondii was almost twice as likely to develop schizophrenia

T. gondii came for you. Please, start to panic and howl right now while running to buy my product.

Lets talk about p-hacking:

About 50% of the population had Toxoplasma gondii at some point in their lives

0.35% of the population are schizophrenic.

If Toxoplasma gondii really causes schizophrenia the correlation effect is not really strong or consistent. Without T. gondii "would be" 0.17%.

As the huge majority of the people that suffered T. gondii infection never develops schizophrenia we could also safely conclude that having cat pets PROTECTS against schizophrenia.

>>pvalde+(OP)
No...using same argument, you would also safely conclude that smoking protects against lung cancer.

>>kelips+W2
Exact. We could say it and it would be also wrong and silly.

Because correlation is not causation necessarily, and a third actor (ehum... alcohol, drugs) could be creating that increase in mental illness.

How many people that "does not have a pet cat" is schizophrenic?