'Skunk' marijuana may hinder brain's ability to send and receive messages

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'Skunk' Pot May Hinder Brain's Ability To Send And Receive Messages

Smoking especially strong pot — or skunk — may damage nerve fibers responsible for sending and receiving messages in the brain.

A study published Friday from researchers in Italy and the U.K. found a bigger effect on the corpus callosum in people who smoked high-potency cannabis than people who smoked marijuana with lower levels of THC or those didn't smoke at all.

RELATED: Oregon marijuana dispensaries prepare for recreational sales

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'Skunk' marijuana may hinder brain's ability to send and receive messages
Containers of cannabis buds are seen at Amazon Organics, a pot dispensary in Eugene, Ore., on Monday, Sept. 28, 2015. Medical marijuana dispensaries in Oregon will be able to sell recreational marijuana starting Thursday. (AP Photo/Ryan Kang)
A medical marijuana dispensary displays a sign Monday, Sept. 28, 2015, in Portland, Ore. Oregon's medical marijuana dispensaries are getting ready for a watershed moment this week: when recreational pot users will also be able to buy weed at their pot shops. (AP Photo/Gosia Wozniacka)
Customers must sign in at the front window before entering Amazon Organics, a pot dispensary in Eugene, Ore., on Monday, Sept. 28, 2015. Medical marijuana dispensaries in Oregon will be able to sell recreational marijuana starting Thursday. (AP Photo/Ryan Kang)
Shane Cavanaugh, owner of Amazon Organics, a pot dispensary in Eugene, Ore., arranges the cannabis display in his store on Monday, Sept. 28, 2015. Medical marijuana dispensaries in Oregon will be able to sell recreational marijuana starting Thursday. (AP Photo/Ryan Kang)
Employees of Amazon Organics, a pot dispensary in Eugene, Ore., help out patients on Monday, Sept. 28, 2015. Medical marijuana dispensaries in Oregon will be able to sell recreational marijuana starting Thursday. (AP Photo/Ryan Kang)
Cannabis salves and elixirs sit on display at Amazon Organics, a pot dispensary in Eugene, Ore., on Monday, Sept. 28, 2015. Medical marijuana dispensaries in Oregon will be able to sell recreational marijuana starting Thursday. (AP Photo/Ryan Kang)
Different types of edibles are seen on display at Amazon Organics, a pot dispensary in Eugene, Ore., on Monday, Sept. 28, 2015. Medical marijuana dispensaries in Oregon will be able to sell recreational marijuana starting Thursday. (AP Photo/Ryan Kang)
Different cannabis products are seen on display at Amazon Organics, a pot dispensary in Eugene, Ore., on Monday, Sept. 28, 2015. Medical marijuana dispensaries in Oregon will be able to sell recreational marijuana starting Thursday. (AP Photo/Ryan Kang)
Different types of THC-infused confections are left on display at Amazon Organics, a pot dispensary in Eugene, Ore., on Monday, Sept. 28, 2015. Medical marijuana dispensaries in Oregon will be able to sell recreational marijuana starting Thursday. (AP Photo/Ryan Kang)
Cannabis clones sit on display at Amazon Organics, a pot dispensary in Eugene, Ore., on Monday, Sept. 28, 2015. Medical marijuana dispensaries in Oregon will be able to sell recreational marijuana starting Thursday. (AP Photo/Ryan Kang)
A patient walks into Amazon Organics, a pot dispensary in Eugene, Ore., on Monday, Sept. 28, 2015. Medical marijuana dispensaries in Oregon will be able to sell recreational marijuana starting Thursday. (AP Photo/Ryan Kang)
Cannabis infused soap bars sit on display at Amazon Organics, a pot dispensary in Eugene, Ore., on Monday, Sept. 28, 2015. Medical marijuana dispensaries in Oregon will be able to sell recreational marijuana starting Thursday. (AP Photo/Ryan Kang)
Containers of cannabis buds are seen on display at Amazon Organics, a pot dispensary in Eugene, Ore., on Monday, Sept. 28, 2015. Medical marijuana dispensaries in Oregon will be able to sell recreational marijuana starting Thursday. (AP Photo/Ryan Kang)
A bag of cannabis buds are seen at Amazon Organics, a pot dispensary in Eugene, Ore., on Monday, Sept. 28, 2015. Medical marijuana dispensaries in Oregon will be able to sell recreational marijuana starting Thursday. (AP Photo/Ryan Kang)
Dab rigs are put on display at Amazon Organics, a pot dispensary in Eugene, Ore., on Monday, Sept. 28, 2015. Medical marijuana dispensaries in Oregon will be able to sell recreational marijuana starting Thursday. (AP Photo/Ryan Kang)
A marijuana bong is left out on display at Amazon Organics, a pot dispensary in Eugene, Ore., on Monday, Sept. 28, 2015. Medical marijuana dispensaries in Oregon will be able to sell recreational marijuana starting Thursday. (AP Photo/Ryan Kang)
Esther Aldrich looks through bags of cannabis buds at Amazon Organics, a pot dispensary in Eugene, Ore., on Monday, Sept. 28, 2015. Medical marijuana dispensaries in Oregon will be able to sell recreational marijuana starting Thursday. (AP Photo/Ryan Kang)
Shane Cavanaugh, owner of Amazon Organics, a pot dispensary in Eugene, Ore., is seen inside of his store on Monday, Sept. 28, 2015. Medical marijuana dispensaries in Oregon will be able to sell recreational marijuana starting Thursday. (AP Photo/Ryan Kang)
Bottles of cannabis tinctures are seen on display at Amazon Organics, a pot dispensary in Eugene, Ore., on Monday, Sept. 28, 2015. Medical marijuana dispensaries in Oregon will be able to sell recreational marijuana starting Thursday. (AP Photo/Ryan Kang)
A bottle of cannabis tincture is seen at Amazon Organics, a pot dispensary in Eugene, Ore., on Monday, Sept. 28, 2015. Medical marijuana dispensaries in Oregon will be able to sell recreational marijuana starting Thursday. (AP Photo/Ryan Kang)
Shane Cavanaugh, owner of Amazon Organics, a pot dispensary in Eugene, Ore., arranges the cannabis display in his store on Monday, Sept. 28, 2015. Medical marijuana dispensaries in Oregon will be able to sell recreational marijuana starting Thursday. (AP Photo/Ryan Kang)
A cannabis bud rests on a container at Amazon Organics, a pot dispensary in Eugene, Ore., Monday, Sept. 28, 2015. Medical marijuana dispensaries in Oregon will be able to sell recreational marijuana starting Thursday. (AP Photo/Ryan Kang)
Amazon Organics, a pot dispensary in Eugene, Ore., prepares for when they will be able to sell recreational marijuana starting Monday, Sept. 28, 2015. Medical marijuana dispensaries in Oregon will be able to sell recreational marijuana starting Thursday. (AP Photo/Ryan Kang)
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The corpus callosum is that thick band of nerves in the center that connects the left half of the brain with the right.

These are the same researchers that earlier this year said the easy access to skunk in London could be behind a rise in psychosis reports linked to cannabis. They say this study shows there's possibly less transfer of information between the two halves of the brain.

READ MORE: Colombia to legalize commercial sale of medical marijuana

The study concludes, "Since high-potency preparations are now replacing traditional herbal drugs in many European countries, raising awareness about the risks of high-potency cannabis is crucial."

The researchers don't outright call skunk dangerous. It's more of a warning that monitoring THC levels — just how strong pot is — is important.

One researcher told The Guardian, "When it comes to alcohol, we are used to thinking about how much people drink, and whether they are drinking wine, beer, or whisky. We should think of cannabis in a similar way."

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