The left/right brain thing has always been bunk. People have entire hemispheres removed with minimal negative consequences, personality changes, etc.

One is a genius, the other's insane.

Are you thinking what I'm thinking?....

Probably three brains if you consider the neural activity going on in the gut and how it interacts with our brain.

In a study published in 2023, the scientists found that long COVID is associated with a reduction in the body's natural levels of serotonin, a signaling molecule that is produced the brain and the gut. In the brain, serotonin influences mood, sleep and memory. In the rest of the body, it plays a role in physiology, but Thaiss and Levy found that gut-produced serotonin can affect the brain as well.

....

Before these findings, scientists debated how SARS-CoV-2 could cause cognitive problems, as it is unclear if the virus breaches the blood-brain barrier. But the study by Thaiss and Levy suggests that the disease could have direct influence on the brain via the vagus nerve, regardless of whether the virus enters the brain.

...

The gut also contains the largest number of neurons outside the brain of any structure in the body — more than 100 million neurons line the human digestive tract, from the esophagus to the anus. These cells make up what is known as the enteric nervous system, which some scientists refer to as a "second brain."

It never ceases to amaze me how complicated our bodies and our minds are.

We're pretty good at using the lizard brain, actually.

We have lots of brains but we only use 10% of them

To expand on what frongt said. An organ is a collection of specialized tissues that performs certain specific tasks. The stomach is an organ, the pancreus is an organ, and together they are part of a system. If the brain is more than one organ, we can target specific parts in the tissue differences for lab cell growth (as the article suggests), targeted medicine delivery (due to differences in autonomic braincell makup vs frontal and temporal processing tissues), and the next step in research will probably be how the two brain organs develop connections which could lead to nerve pathway repair (typically very hard to achieve).

It's that the brain stem is made of different cells than the forebrain and midbrain. You can't grow a full brain from one sample of cells. So, it's considered 2 different organs.

They don't fuse. They're connected, yes, but so is everything in your body.

I mean so does the whole human body

The meat does the thinking!

https://youtube.com/watch?v=5usXhX0zaO4

Look up the split brain experiments. They’re incredibly interesting.

I'm just speculating here but it might be more of 'which organ does your consciousness reside?'

I feel like my brain presents me with ideas and I get to pick which ideas to act upon.

As long as one of them is only using lizard vocalizations it's completely normal.

Front on a regular day. Hind when you're feeling really frisky.

https://www.nature.com/articles/s41593-026-02433-7 So from the abstract of the paper they use two different techniques. Lineage tracing studies in mouse embryos and differentiation of human pluripotent stem cells. Both these techniques are not even decades old at this moment.

I tried finding a vagina version of this but searching "brain vagina" got some real weird results. Lots of furry and odd anime stuff.

Because we fund basically jack shit of scientific investigation that is just for the sake of investigation. A vast majority of funding is purpose driven which puts big blinders on the field. Failure of this type of idea could easily end the career of a new investigator or postdoc.

There's a lot to rant about the state of modern research but a lack of funding is nearly always the biggest reason for why something seemingly obvious in hindsight wasn't discovered earlier.

We knew the forebrain and hindbrain were different. This research shows that the difference is OLD, and likely from when the brain was more distributed. They also found that, while they function in almost the same way, they are built from different genetic tool kits.

Basically, we knew there was a difference. This explains what the difference is and how to work around the problems it has created.

It's front/back not left/right. So no, it does not lend more credibility.

That or seizures, which was a common coincidence in religious folks who claimed they saw god/spirits/profits