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Answering Age-Old Question, Scientists Discover Humans Have a “Second Brain” #science #study

Have you ever wondered why “liberals” seem to think with their backside? There might be a reason for that aside from frustration at their utter inability to grasp basic logic and facts.

If you’re not logic impaired, you’ve probably had a “gut feeling” during your life, but did you know your butt is actually “thinking” too?

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According to scientists in Australia, the human body has a “second brain” in its rear end and it may be smarter than we think.

A study published in the journal JNeurosci says that the gastrointestinal tract contains millions of neurons, which independently control muscle movement in the colon.

“These findings identify a previously unknown pattern of neuronal activity in the peripheral nervous system,” Prof. Nick Spencer from Flinders University in Australia said in a press release.

“Until this new study no one had any idea exactly how large populations of neurons in the ENS lead to contraction of the intestine,” he added, via Science Alert.

Researchers discovered that the neurons in the digestive system fire in synchronized blasts, which propel waste out of the body. This is the same way neurons in the brain fire as they send signals throughout the body.

Spencer and his team believe the same results will be found in other mammals including humans, even though the Australian study was conducted with mice,

“We can use this as a blueprint to understand how dysfunctional neurogenic motor patterns may arise along the colon,” Spencer said.

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The professor noted that the brain in your rear is technically your “first brain” because scientists believe it actually evolved before the brain and central nervous system in mammals.

The enteric nervous system (ENS) is known as the “second brain” or the brain in the gut because it can operate independently of the brain and spinal cord, the central nervous system (CNS).

Despite the known role of the ENS in generating motor activity in the colon, observing ENS neurons in action has been a challenge.

Professor Nick Spencer and colleagues combined a new neuronal imaging technique with electrophysiology records of smooth muscle to reveal a rhythmic pattern of activity underlying so-called colonic migrating motor complexes. They demonstrate how this activity transports fecal pellets through the mouse colon.

“These findings identify a previously unknown pattern of neuronal activity in the peripheral nervous system,” says Professor Spencer, from the Visceral Neurophysiology Laboratory at the College of Medicine and Public Health at Flinders University, South Australia.

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Mr Americana, Overpasses News Desk
June 1st, 2018

 

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