Latest / The Mind of a Man / The Most Unexplainable Humans in History
Transcript
- 0:00Speaker 1: Phineas Gage. Phineas Gage was a 25-year-old railway foreman in Vermont,
- 0:05Speaker 1: and in 1848, he became the most important patient in
- 0:08Speaker 1: the history of neuroscience by having a metal rod fired
- 0:11Speaker 1: through his brain and then standing up and asking for
- 0:14Speaker 1: a ride home. His job was clearing rock to lay track.
- 0:17Speaker 1: which meant packing explosive powder into drilled holes using a
- 0:20Speaker 1: tamping iron, a sharpened rod over three feet long and
- 0:24Speaker 1: weighing 13 pounds. On the 13th of September, the powder
- 0:28Speaker 1: went off early. The rod launched upward, entered under his
- 0:31Speaker 1: left cheekbone, passed behind his eye, tore through the left
- 0:34Speaker 1: front of his brain, and exited through the top of
- 0:36Speaker 1: his skull, landing 25 yards away, streaked with blood. Here
- 0:40Speaker 1: is the part nobody can quite believe. He did not die.
- 0:44Speaker 1: He did not even lose consciousness. He was thrown onto
- 0:47Speaker 1: his back, twitched a few times, and then started talking.
- 0:50Speaker 1: Within minutes, he was sitting upright in a cart, riding
- 0:53Speaker 1: back into town. When the doctor arrived, Gage was waiting
- 0:56Speaker 1: on the porch of his hotel and greeted him with
- 0:58Speaker 1: a line that has echoed through medicine ever since. Doctor?
- 1:01Speaker 1: Here is business enough for you. The doctor could see
- 1:03Speaker 1: his brain pulsing through the hole in his skull. Gage
- 1:06Speaker 1: lived for another 12 years, but he was not the same.
- 1:09Speaker 1: The men who knew him said the accident had changed
- 1:11Speaker 1: who he was. The reliable, capable foreman became, by some accounts, impulsive, difficult, unrecognizable.
- 1:18Speaker 1: His friends said he was no longer Gage. And that
- 1:21Speaker 1: was the discovery, the thing his shattered skull taught the world.
- 1:24Speaker 1: The idea that specific parts of the brain govern specific
- 1:27Speaker 1: parts of who you are, that your personality has a
- 1:30Speaker 1: physical address inside your head, and that a rod through
- 1:33Speaker 1: the wrong three inches can change the person without killing
- 1:36Speaker 1: the body. Every neuroscience textbook on Earth still has a
- 1:39Speaker 1: section on him. And the honest truth is that even now,
- 1:42Speaker 1: with all our scanners and models, the full story of
- 1:44Speaker 1: how a man takes an iron bar through the brain
- 1:47Speaker 1: and walks away is something medicine describes far better than
- 1:50Speaker 1: it explains. Joy Milne. Joy Milne smelled her husband's death coming,
- 1:55Speaker 1: 17 years before any doctor could. She is a retired
- 1:58Speaker 1: nurse from Scotland, and she has an ability that should
- 2:01Speaker 1: not be possible. She can smell disease. Not infection... Not
- 2:05Speaker 1: a wound. She can smell illnesses that give off no
- 2:08Speaker 1: odor anyone else on Earth has ever detected. It started
- 2:11Speaker 1: with her husband, Les. When he was around 28, Joy
- 2:14Speaker 1: noticed his smell had changed. A new scent. Musky. Greasy. Faint,
- 2:19Speaker 1: but constant. She told him he was not washing properly.
- 2:22Speaker 1: He was. The smell stayed, unexplained, for years. And eventually,
- 2:26Speaker 1: she simply stopped mentioning it. Seventeen years later, Les was
- 2:30Speaker 1: diagnosed with Parkinson's disease. And a while after that, Joy
- 2:33Speaker 1: went with him to a support group full of other
- 2:35Speaker 1: Parkinson's patients. And the moment she walked into the room,
- 2:39Speaker 1: she understood. Every person there smelled exactly like her husband.
- 2:43Speaker 1: The same musky odor she had been smelling on Les
- 2:46Speaker 1: since before there was a single visible symptom. She had
- 2:49Speaker 1: been smelling the disease itself. 17 years early. When she
- 2:53Speaker 1: mentioned this to a scientist almost by accident, he dismissed it.
- 2:57Speaker 1: Why would Parkinson's have a smell? It made no sense,
- 3:00Speaker 1: but he came back to it and they tested her.
- 3:02Speaker 1: They had six people with Parkinson's and six without wear t-shirts,
- 3:06Speaker 1: then bagged the shirts and handed them to Joy to
- 3:08Speaker 1: sort by smell alone. She got 11 out of 12 right.
- 3:12Speaker 1: The one she got wrong, the healthy man she insisted
- 3:15Speaker 1: smelled of Parkinson's, was diagnosed with the disease eight months later.
- 3:19Speaker 1: She had not been wrong. She had been early. Joy
- 3:21Speaker 1: Milne turned out to have a genetic hypersensitivity of smell,
- 3:25Speaker 1: and her nose has since become the basis of an
- 3:27Speaker 1: actual diagnostic test, one that may let doctors catch Parkinson's
- 3:31Speaker 1: years before the shaking ever starts. She says she can
- 3:34Speaker 1: smell other diseases too. Cancer, diabetes, tuberculosis, which she describes
- 3:39Speaker 1: as an oily biscuit smell. Science is still trying to
- 3:42Speaker 1: catch up to a grandmother from Perth who could smell
- 3:45Speaker 1: death coming two decades before the doctors could. The people
- 3:48Speaker 1: who feel no pain. When Ashlyn Blocker was two years old,
- 3:51Speaker 1: she pressed her bare hand flat against the running motor
- 3:54Speaker 1: of a pressure washer and held it there, calmly, while
- 3:57Speaker 1: it burned the palm and fingertips off her skin. She
- 4:00Speaker 1: did not cry. She did not even flinch. She simply
- 4:03Speaker 1: looked at her hand and then at her mother. And
- 4:05Speaker 1: when her mother burst into tears, it was little Ashlyn
- 4:08Speaker 1: who comforted her, saying it was going to be okay.
- 4:11Speaker 1: Ashlyn was born unable to feel pain, not dulled, gone.
- 4:15Speaker 1: The condition is called congenital insensitivity to pain, and Ashlyn,
- 4:19Speaker 1: a girl from Patterson, Georgia, is one of only a
- 4:21Speaker 1: few dozen documented cases on Earth. She feels pressure, she
- 4:24Speaker 1: feels warmth and cold, and someone's touch. What she cannot
- 4:28Speaker 1: feel is pain, the alarm the rest of us can
- 4:30Speaker 1: never switch off. As a baby, she never cried, not
- 4:33Speaker 1: when she was hungry, not when she was teething. The
- 4:36Speaker 1: only time in her early childhood she ever cried from
- 4:38Speaker 1: pain was when her eardrum ruptured, and she felt the
- 4:41Speaker 1: pressure of it once. That sounds, at first, like it
- 4:44Speaker 1: might be a gift. It is the opposite, and it
- 4:46Speaker 1: is one of the most dangerous things a person can
- 4:49Speaker 1: be born with. Children like Ashlyn destroy themselves without knowing.
- 4:53Speaker 1: They chew through their own tongues and fingertips. They break
- 4:56Speaker 1: bones and keep walking. They scald and scratch and burn
- 4:59Speaker 1: themselves because nothing inside them ever says stop. Her parents
- 5:03Speaker 1: learned to put ice in her food so she would
- 5:05Speaker 1: not gulp down something scalding and to check her body
- 5:08Speaker 1: constantly for injuries she could not report, like checking a
- 5:11Speaker 1: house for fires that give off no smoke. And the
- 5:14Speaker 1: science still has gaps. Researchers traced Ashland's condition to a
- 5:18Speaker 1: mutation in a gene called SCN9A, the switch that lets
- 5:22Speaker 1: pain signals reach the brain. But the story is bigger
- 5:25Speaker 1: than one gene. In Scotland, a woman named Jo Cameron
- 5:28Speaker 1: reached her 60s before doctors realized she had never in
- 5:31Speaker 1: her entire life felt significant pain or anxiety or fear,
- 5:36Speaker 1: tracing it to a mutation in a gene so obscure
- 5:39Speaker 1: it had been dismissed as junk. There are cases with
- 5:41Speaker 1: no identifiable cause at all. We understand pain well enough
- 5:44Speaker 1: to know it is keeping you alive right now. We
- 5:46Speaker 1: still cannot fully explain the people born without it. Henrietta
- 5:50Speaker 1: Lacks died of cancer in 1951 at 31 years old.
- 5:55Speaker 1: She is also, in a real and literal sense, still
- 5:58Speaker 1: alive right now in laboratories on every continent more than
- 6:01Speaker 1: 70 years later. Part of her never stopped living and
- 6:05Speaker 1: she never agreed to any of it. In 1951, she
- 6:08Speaker 1: walked into a hospital in Baltimore with cancer. During her treatment,
- 6:12Speaker 1: doctors took a sample of her tumor without her knowledge
- 6:14Speaker 1: or permission, which was common and legal at the time.
- 6:17Speaker 1: Every other human cell sample they had ever tried to
- 6:20Speaker 1: keep alive had died within days. Hers did not. Her
- 6:23Speaker 1: cells doubled, then doubled again. They kept dividing, tirelessly, endlessly,
- 6:28Speaker 1: in a way no human cells ever had before. They were,
- 6:31Speaker 1: for all practical purposes, immortal. They named the line HeLa
- 6:36Speaker 1: from the first letters of her name, and it became
- 6:38Speaker 1: the single most important tool in modern medicine. HeLa cells
- 6:42Speaker 1: were used to develop the polio vaccine. They went up
- 6:44Speaker 1: in the first space missions to see what happened to
- 6:47Speaker 1: human tissue in zero gravity. They have been used in
- 6:50Speaker 1: research on cancer, on AIDS, on the effects of radiation,
- 6:53Speaker 1: in nearly 70,000 scientific studies. If you have been vaccinated
- 6:57Speaker 1: for almost anything, her cells are part of the reason
- 7:00Speaker 1: it exists. The scientific mystery is real. To this day,
- 7:04Speaker 1: researchers cannot fully explain why her particular cells were so aggressively,
- 7:08Speaker 1: perfectly immortal when everyone else's died. But the deeper story
- 7:12Speaker 1: is a human one. Her family did not even know
- 7:14Speaker 1: the cells existed until more than 20 years after her death.
- 7:18Speaker 1: A woman was quietly turned into the foundation of modern biology,
- 7:22Speaker 1: and for decades, nobody thought to tell the people who
- 7:24Speaker 1: loved her. The family that cannot sleep. There is an
- 7:27Speaker 1: illness so rare and so cruel that it exists in
- 7:30Speaker 1: only a few dozen families on Earth. and it kills
- 7:33Speaker 1: them in a way that sounds impossible. The people who
- 7:36Speaker 1: have it lose the ability to sleep, not for a night, forever,
- 7:41Speaker 1: and then they die from it. It is called fatal
- 7:43Speaker 1: familial insomnia, and it is genetic, passed down through bloodlines
- 7:47Speaker 1: like an inheritance nobody wants. It usually strikes in middle age,
- 7:51Speaker 1: and it begins quietly. The person starts sleeping badly, Then worse.
- 7:55Speaker 1: Then they find they cannot fall asleep at all, no
- 7:58Speaker 1: matter how exhausted they are, no matter what any doctor
- 8:01Speaker 1: gives them. Sleeping pills do nothing. The brain has lost
- 8:04Speaker 1: the switch. What follows is a slow unraveling. Without sleep,
- 8:08Speaker 1: the body cannot repair itself and the mind cannot rest.
- 8:11Speaker 1: And over months, the person deteriorates, physically and mentally, trapped
- 8:16Speaker 1: in a state of total exhaustion they can never escape.
- 8:19Speaker 1: There is no cure. There is no treatment that stops it.
- 8:22Speaker 1: Once it begins, it runs its course, and the families
- 8:25Speaker 1: who carry it have spent generations watching it take their
- 8:28Speaker 1: parents and knowing it may be waiting for them, too.
- 8:30Speaker 1: The reason it belongs here is what it reveals. We
- 8:33Speaker 1: treat sleep as ordinary, something we all do every night
- 8:36Speaker 1: without thinking. This condition shows that sleep is not optional
- 8:40Speaker 1: at all. It is a biological necessity so fundamental that
- 8:43Speaker 1: losing it entirely is fatal. And medicine still cannot fully
- 8:47Speaker 1: explain why the body cannot survive without it, only that
- 8:50Speaker 1: it cannot. The people who remember everything. Ask most people
- 8:53Speaker 1: what they were doing on a random Tuesday 11 years ago,
- 8:56Speaker 1: and they will laugh at you. There's a tiny number
- 8:59Speaker 1: of people alive who can answer instantly and correctly and
- 9:02Speaker 1: who can do it for almost every single day of
- 9:04Speaker 1: their lives. The condition is called hyperthymesia, and it is
- 9:07Speaker 1: not the memorized party trick that memory champions perform. Those
- 9:11Speaker 1: people train for years using techniques. The people with hyperthymesia
- 9:14Speaker 1: do nothing at all. They simply cannot forget. Give them
- 9:18Speaker 1: a date, any date within their lifetime. and they can
- 9:20Speaker 1: tell you what day of the week it fell on,
- 9:22Speaker 1: what they did, what the weather was like, what was
- 9:24Speaker 1: in the news. Their autobiographical memory runs like an unbroken
- 9:28Speaker 1: tape with no gaps. It sounds like a superpower, and
- 9:31Speaker 1: in some ways it is, but the people who live
- 9:33Speaker 1: with it describe something heavier. Because they cannot forget the
- 9:36Speaker 1: good days, and they also cannot forget the worst ones,
- 9:39Speaker 1: every grief Every embarrassment, every loss stays as sharp and
- 9:43Speaker 1: complete as the day it happened, available for instant replay
- 9:46Speaker 1: whether they want it or not. Most of us heal
- 9:48Speaker 1: partly because memory fades. For them, it does not. And
- 9:51Speaker 1: the science is genuinely unsettled. Brain scans have found some
- 9:55Speaker 1: small structural differences in people with hyperthymesia, but nothing that
- 9:58Speaker 1: adds up to a full explanation. Nobody can say exactly
- 10:01Speaker 1: how a human brain, with the same basic equipment as
- 10:04Speaker 1: everyone else's, records an entire life in that kind of perfect,
- 10:07Speaker 1: permanent detail. They remember everything, and we cannot explain how.
- 10:12Speaker 1: The woman who could not feel fear. There is a
- 10:15Speaker 1: woman who is physically incapable of feeling fear. Not brave,
- 10:19Speaker 1: not calm under pressure, fearless in the literal sense that
- 10:22Speaker 1: the part of her brain that makes fear no longer
- 10:25Speaker 1: works and nothing on earth can frighten her. Scientists studied
- 10:28Speaker 1: her for years, identifying her only as SM to protect her.
- 10:33Speaker 1: And they gave her a nickname that sounds like a
- 10:35Speaker 1: comic book. the woman with no fear. A rare genetic
- 10:38Speaker 1: condition had damaged a specific structure deep in her brain
- 10:41Speaker 1: on both sides called the amygdala, which is the part
- 10:44Speaker 1: that generates fear. And with it gone, she was, quite simply, fearless.
- 10:48Speaker 1: Not by choice or courage, but because the machinery that
- 10:51Speaker 1: produces fear had been switched off. Researchers tried everything. They
- 10:56Speaker 1: took her to exotic pet stores, and she wanted to
- 10:58Speaker 1: touch the venomous snakes and spiders, reaching for them again
- 11:01Speaker 1: and again while being warned to stop. they took her
- 11:04Speaker 1: through one of the most famously terrifying haunted attractions in
- 11:07Speaker 1: the country and where everyone else screamed she led the
- 11:10Speaker 1: group laughing and at one point startled a costumed monster
- 11:14Speaker 1: rather than the other way around they showed her horror
- 11:17Speaker 1: films nothing in her real life she had been through
- 11:19Speaker 1: genuinely dangerous threatening situations and reported feeling no fear during
- 11:24Speaker 1: any of them which had put her in real danger
- 11:27Speaker 1: more than once fear it turns out keeps us alive
- 11:30Speaker 1: It is not a weakness. It is a guardian. And
- 11:33Speaker 1: she was living without her guardian. Her case taught scientists
- 11:36Speaker 1: an enormous amount about where fear lives in the brain
- 11:39Speaker 1: and what it is for. But it also left them
- 11:41Speaker 1: with an uneasy question they still turn over. If fear
- 11:44Speaker 1: can be erased this cleanly by damaging one small structure,
- 11:48Speaker 1: then how much of what we feel and who we
- 11:50Speaker 1: are is just biology waiting to be switched off? The
- 11:54Speaker 1: people who see colors that do not exist. There are
- 11:56Speaker 1: people walking past you who can see around 100 million colors.
- 12:01Speaker 1: You see about 1 million. The shades they perceive are
- 12:04Speaker 1: not a metaphor and not an exaggeration. They are real
- 12:07Speaker 1: colors that your eyes physically cannot detect. And most of
- 12:10Speaker 1: these people have no idea the rest of us are
- 12:12Speaker 1: missing them. Almost every human sees the world through three
- 12:16Speaker 1: kinds of color detector in the eye. Three channels that
- 12:19Speaker 1: mix to produce roughly a million shades. These people, almost
- 12:23Speaker 1: all of them women, have a fourth. They are called
- 12:25Speaker 1: tetrachromats and the extra channel is not a small upgrade.
- 12:29Speaker 1: In theory, a true tetrachromat can distinguish around 100 million
- 12:33Speaker 1: colors a hundred times more than everyone around them. Shades
- 12:37Speaker 1: that look identical to us, two socks, two greens, a
- 12:41Speaker 1: wall that seems a single flat color, can be visibly,
- 12:44Speaker 1: obviously different to them. They spend their lives seeing a
- 12:47Speaker 1: richer world and mostly not realizing that everyone else is
- 12:50Speaker 1: missing it, because how would they know? You cannot describe
- 12:53Speaker 1: a color to someone who has no way to see it.
- 12:55Speaker 1: For a long time, it was purely theoretical. Scientists knew
- 12:58Speaker 1: the genetics made it possible, but could not confirm anyone
- 13:01Speaker 1: who actually had the working fourth channel, until testing eventually
- 13:05Speaker 1: identified genuine tetrachromats, including an artist whose paintings were quietly
- 13:10Speaker 1: full of colors most viewers could not fully perceive. And
- 13:13Speaker 1: the mystery is not just the eye, it is the brain.
- 13:16Speaker 1: Having a fourth channel is one thing, learning to use
- 13:18Speaker 1: it to actually process and separate all those extra colors
- 13:22Speaker 1: instead of ignoring them is another. and science still does
- 13:25Speaker 1: not fully understand why some tetrachromats seem to use their
- 13:28Speaker 1: gift while others carry it without ever knowing. There are
- 13:30Speaker 1: people walking past you who see colors you will never
- 13:33Speaker 1: see and cannot even imagine. The boy in the bubble.
- 13:36Speaker 1: A boy named David spent every second of his life
- 13:39Speaker 1: from the moment he was born to the age of 12,
- 13:42Speaker 1: sealed inside a plastic bubble. The first time his mother
- 13:45Speaker 1: ever touched him with her bare hands, he was already dying.
- 13:48Speaker 1: He had never once been touched without a wall of
- 13:50Speaker 1: plastic between them. His was less a mystery of biology
- 13:53Speaker 1: than a mystery of what we are willing to do
- 13:55Speaker 1: to keep someone alive. David was born in 1971 with
- 13:59Speaker 1: a condition that meant he had almost no immune system
- 14:02Speaker 1: at all. An ordinary cold, a germ that you would
- 14:05Speaker 1: never notice, could kill him. And so, to keep him alive,
- 14:08Speaker 1: doctors placed him, from the moment of his birth, inside
- 14:11Speaker 1: a sterile plastic bubble. He lived there. He grew up there. Food, water,
- 14:16Speaker 1: everything that reached him was decontaminated first. He was touched
- 14:19Speaker 1: by human hands only through thick plastic gloves built into
- 14:23Speaker 1: the walls. He became famous as the boy in the bubble,
- 14:26Speaker 1: and his life was a genuine attempt by medicine to
- 14:29Speaker 1: buy time, to keep a child alive in a sealed world,
- 14:32Speaker 1: while science tried to find a way to fix his
- 14:35Speaker 1: immune system. NASA even built him a special suit so
- 14:38Speaker 1: he could, briefly, step outside the bubble. And photographs of
- 14:41Speaker 1: that small figure in the spacesuit went around the world.
- 14:45Speaker 1: But the bubble was not a cure. It was a
- 14:46Speaker 1: waiting room. And the deepest tragedy is how it ended.
- 14:49Speaker 1: A bone marrow transplant from his sister was meant to
- 14:52Speaker 1: save him, to finally let him leave. Instead, the donated
- 14:55Speaker 1: tissue carried a hidden virus, dormant and undetected, and inside
- 14:59Speaker 1: David's defenseless body, it did what nothing in his sealed
- 15:02Speaker 1: world ever could. He died in 1984 at 12 years old,
- 15:06Speaker 1: shortly after being able, for the first and only time
- 15:09Speaker 1: in his life, to be touched by his mother without
- 15:11Speaker 1: a barrier between them. his case pushed the science of
- 15:14Speaker 1: immune disorders forward enormously and children born with his condition
- 15:18Speaker 1: today have real treatments that did not exist for him
- 15:21Speaker 1: he spent his entire life inside a bubble so that
- 15:24Speaker 1: others would not have to and that is the thread
- 15:26Speaker 1: running through all of these every one of these people
- 15:29Speaker 1: the man with the rod through his brain the woman
- 15:31Speaker 1: who smelled death The boy in the plastic room taught
- 15:34Speaker 1: medicine something it could not have learned any other way.
- 15:37Speaker 1: They were not miracles, and they were not freaks. They
- 15:40Speaker 1: were human beings whose bodies did something we could not explain,
- 15:44Speaker 1: and who, in living through it, quietly handed the rest
- 15:47Speaker 1: of us the answers.