If you watch lots of porn, your brain will be smaller

Posted by on May 29, 2014 at 7:12 pm

Men who report watching a lot of pornography tend to have less volume and activity in regions of the brain linked to rewards and motivation, says a new German study.

The study, published in JAMA Psychiatry, can’t say watching porn caused the decrease in brain matter and activity, however.

It’s not clear, for example, whether watching porn leads to brain changes or whether people born with certain brain types watch more porn, said Simone Kühn, the study’s lead author from the Max Planck Institute for Human Development in Berlin, in an email.

“Unfortunately we cannot answer this question based on the results of the present study,” Kühn said.

But, she noted, the results provide the first evidence for a link between pornography consumption and reductions in brain size and brain activity in response to sexual stimuli.

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