Professional climber Alex Honnold’s brain shows ‘no fear’ as experts reveal unique make-up

The reckless athlete scowled Taipei 101 skyscraper On January 25, without ropes or protective equipment. The event was streamed live on Netflix, as Fox News Digital previously reported.

Honnold succeeded in reaching the top of the 101-story steel building in just one hour and 31 minutes, waving his arms triumphantly at the top. He later noted that the view was “amazing” even though it was windy.

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As a professional climber, Honnold’s conquests have included major mountain ranges across the United States, as well as Greenland’s massive sea cliffs—three times the size of the Empire State Building.

In a 2016 experiment, neuroscientist Jean Joseph set out to find out what was inside Honnold’s brain Possessed to take on such a scary climb by scanning it.

Pictured on January 25, 2026 is American rock climber Alex Honnold. He reached the top of Taipei 101 in Taiwan after successfully free-flying alone on the famous skyscraper without ropes or safety equipment. (Corey Rich for Netflix; AP Photo/Xiang Yingying)

The doctor was one of the first to perform fMRI scans — functional magnetic resonance imaging — on “high sensation seekers,” Nautilus reports.

Joseph and a team of technicians discovered that Honnold’s amygdala showed little activity in response to images that would normally trigger a stimulus. Fear and stress reactions.

“The neuroscientist was unable to detect activity anywhere in the fear center of Honnold’s brain,” the report noted.

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The researchers flipped the experiment, introducing a reward task where Honnold could win money. The amygdala and other brain structures of the subjects “usually look like a lit-up Christmas tree,” Joseph said.

But Honnold was “lifeless in black and white.” He showed activity only in areas that process visual input, confirming that he was awake and looking at the screen.

A man inside the building is shown recording Honnold climbing the Taipei 101 building without ropes or safety equipment in Taipei on January 25, 2026. (E-Hua Cheng/AFP via Getty Images)

“There’s not much on my mind,” Honnold told Joseph. “He’s not doing anything.”

Dr. Daniel Aminfounder of Amen Clinics and a California-based psychiatrist, has not scanned Honnold’s brain but is an expert in brain imaging.

In brain scans of extreme athletes and other adrenaline junkies, Amin said there is often less baseline activity in the prefrontal cortex, which is involved in fear inhibition, impulse control, and risk assessment.

“Their brains are less fearful and more powerful because of the challenge and novelty.”

In these individuals, there is also strong activation of reward and motivation circuits, or dopamine pathways, according to Amin.

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“That is, high stimulation seems natural — or even necessary — for them to feel engaged,” he said. “Some also show decreased reactivity in the amygdala, so situations that trigger fear in most people do not produce the same alarm response.”

“In short, their brains are less fearful and more impulsive,” he added Challenge and novelty.“

Thrill seekers often lack signals in their brains that trigger fear, according to experts. (Istock)

Based on nearly 300,000 brain scans performed at the Amen Clinics, Dr. Amen noted that in people like Honnold who are “elite extreme performers,” the key difference compared to the average brain is “extraordinary top-down control.”

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“The prefrontal cortex remains connected and organized under stress, allowing precise focus, emotional regulation and decision-making in high-risk environments,” he said. “Fear circuits are active enough to attract attention, but not enough to disrupt performance.”

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Brains like Honnold’s are often “very efficient” at sensorimotor integration, or when Vision and balance And motor planning “works seamlessly together.”

“Instead of panicking, the brain enters a highly regulated flow state pattern, where attention is narrow, calm, and precise,” he said.

In a normal brain, fear circuits tend to activate faster and louder, according to Amen — and the prefrontal cortex tends to go offline under threat, leading to hesitation, overthinking, or panic.

“Most people experience a strong mismatch between perceived risk and control, which is protective for survival but limiting Extreme performanceHe said.

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“For the average person, high adrenaline disrupts accuracy and judgement, while for extreme athletes, it regulates the brain,” he said.

“Their brains are not impulsive, but are better regulated under stress, whereas a normal brain prioritizes safety and avoidance.”

Fox News Digital’s Jessica Michaelis contributed reporting.