World Governments Summit: The Science of Living Longer – and Better - Plenary Session
455 segments
Hello everyone.
Can you hear me okay up the back? Good.
Can you understand my Australian accent
okay?
Good. Well, thank you for having me
today. I have 15 minutes to tell you
about uh what is one of the most
exciting changes for humanity that you
may not know is actually happening.
Uh I've Of course, I'm talking about
longevity
and the longevity revolution
that uh I here
stand to tell you about and represent as
a scientist in this field. Uh so, my
background briefly is I've been in the
longevity research field for 30 years.
I've watched its rapid changes.
Uh and I'm at Harvard Medical School uh
and I run a lab of about 25
PhDs. And we are pushing the boundaries
of what is possible with human health.
And it is clear to me
uh and many of my colleagues around the
world that
our generation is going to witness the
biggest change in health
since the inventions of clean water and
vaccines.
And what I'm talking about is our
ability to control our own biology.
And when that happens, and this may only
be between 10 and 20 years in the
future, we will look to back at today
at our current health care and think of
it like it is very old-fashioned if not
medieval.
So, I'm talking about aging today. And
for many years, we've
ignored aging.
If you go to a doctor, typically a
doctor says uh
"Well, you're getting old. It's normal
for you to lose your eyesight. It's
normal for you to have bad hearing. It's
normal for you to to get heart disease.
This is aging. It's normal."
And for too long, normal has equaled
acceptable. And I'm here to say that we
no longer have to think of something
that's normal being acceptable.
Everything else about our life,
the air in this room, the lights, the
clothes we wear, the cars we drive,
this is not natural. This is not normal
for humans.
But we change our world for the better,
and the same is going to be for how fast
we get older.
Aging doesn't have to be acceptable.
In my world, aging is a medical
condition
that's very common,
and it's increasingly
treatable.
So, what I show in this graph is how
rapidly the rise is of diseases as we
get older. On the bottom axis is the age
that we get,
and the diseases rise in risk as we get
older. And what I want you to see is
it's not a straight line, it's
exponential, and they all go up. So, by
the time we're 80,
almost
more than 50% of us have five or more
diseases.
And the older you get, the worse it
gets.
And the goal of my research, and people
like me around the world, is to push the
curve
in this direction, so that diseases come
later.
And the only way to do that is to tackle
aging itself.
Even if we cured all cancer today,
we would only live an average of an
extra 2 and 1/2 years.
Let that sink in.
All cancers gone today, we only live on
average another 2 and 1/2 years. Why?
Because all of the diseases are going up
at the same time.
So, we need to tackle all of the
diseases at once,
and that's aging.
Aging is the cause of these diseases.
They look different, right? In the
brain, aging is different. It looks like
Alzheimer's. In the heart, it looks like
heart disease. In the skin, it looks
like wrinkles. But, the same process is
the same in every tissue, and we can now
slow it down.
And what I'm going to tell you today
is that next month
we're going into human clinical trials
to test for the first time
in history
whether we can reverse the aging process
and cure diseases.
So, it's a very important moment.
So, this is a world forum. Uh
we want to talk about economics, I
think.
And we calculated, um my colleagues and
I in London
that the economic value to slowing aging
is tremendous. It can dramatically
improve the GDP of a country
even if you slow aging by 1 year.
You just make your population live a
healthy 1 extra year.
And for the United States, for example,
that's an extra $38 trillion.
Why?
Why? Because people are not sick, and
they are more productive.
If you extend our lifespan by 10 years,
now that's 360
something
trillion dollars. These are big numbers.
Why? Because our greatest asset as a
country
is not tech, it's not oil, it's not
gold. It's human resource.
Adult human productivity is the greatest
resource of any country.
And there's a problem now.
For most
of the certainly the Western world,
the rates of fertility are declining.
In 1960, the average
person was having
many more children
per thousand people
every year there were 25 babies in the
United States
in uh 1960, now it's around 10 babies
per thousand people.
For the first time, more than half of
the American states
produced fewer babies
than people died.
Half of the United States is declining
in population. So, we have less and less
people
to do the work.
So, there are only two solutions:
replace them with robots or keep people
alive and healthy.
The other problem is there's very little
research into aging.
Okay? In the United States, which puts
the most research dollars into aging,
you can see on this graph, it's only 500
million
compared to
many billions of dollars to target
individual diseases.
But, as I told you, if you target
individual diseases, you're not going to
extend lifespan by very much. You need
to tackle all of the processes at once.
Now, I'm going to give you a little
little bit of biology lesson, because
it's very important that you understand
why we can now tackle aging when we
couldn't do this even 5 years ago.
We can tackle aging because we now
believe we understand why we age.
And it's not wear and tear. It's not
that we just wear out like a car.
Our bodies are not like cars.
Our bodies are more like computers that
can be programmed and reprogrammed and
rebooted
to be young again.
And this graph from my uh good colleague
and friend Steve Horvath, Professor
Steve Horvath,
showed that you can even measure
changes, chemical changes on our DNA
in our blood or anywhere, we can take a
cheek swab from our mouth, and we can
measure how old we are.
Not by our birthdays,
which is called chronological age,
but by how fast of all, is getting
older. We call this our biological age.
And there's a very specific measure for
how old we are biologically.
And these are chemicals that get changed
on the DNA. Our DNA is not pure, it's
not just clean. It gets chemicals added
on and off as we get older and we can
measure those with sequencing machines
and predict not just how old somebody
is, but more importantly how sick they
will be in the future and even when they
will die.
And the in the United States, you can
buy a kit and take a cheek swab or take
a blood sample and the company will tell
you how old you are biologically and how
long you might live if you don't change
your health. And you can see on this
graph some people are much younger than
others even if they have the same
birthday.
Now, this is the theory that comes from
my lab at Harvard. It's called the
information theory of aging and this is
the idea
that we are like computers, not
machines.
One analogy and hopefully you all
remember what a compact disc is.
Uh I think you do. When I teach
students, sometimes I have to tell them
what is a CD.
Um but what we think it aging is, aging
is like
scratches on a CD.
The DNA is the music.
So, we get beautiful music when we're
young, but when we get old, we cannot
read the beautiful music. Our cells do
not read the DNA correctly. So, the
cells they become lost, they become
uh confused and our old cells do not
make the right proteins and they they
get diseases.
This we believe is aging.
But what's amazing is we found that you
can polish the CD, you can get rid of
the scratches
and rejuvenate cells so they're young
again.
And put to put it another way, you can
reinstall the software of the body so
that it's young again.
We can quite literally in my lab
reverse the age of cells
and of very complex organs and tissues,
including the eye, the most complex,
and the brain.
We can reverse aging
by 75%
in 6 weeks.
And I'll show you what happens when we
do that.
This is the opposite experiment we did.
This is what happens when you scratch
the CD, when you corrupt the software of
an animal.
We're putting those chemicals on the DNA
and making it get older faster.
And you can see the mouse on the right
is
uh the brother of the other brother,
born on the same day,
same age,
but one of them we accelerated the aging
process. We scratched the CD of this
mouse.
Good evidence that the information
theory of aging
may be correct.
And what we like to say in my lab is if
you can give something, you can take it
away.
So, we started working on how to reverse
aging, not just accelerate it.
So, the question was, is aging
in us
reversible?
We know that we can reverse it when we
have children.
Our baby Our babies are not born 30
years old or 40 years old, depending on
the parents, because on the seventh day
of fertilization, after you have a
conception,
on day seven, the baby goes back in age.
There's a reset of the age when we're
very young.
But can you do this
in our bodies
when we're older, when we're 40, when
we're 50, even when we're 90? Can you do
this? And can it be safe ever?
And I believe it can.
And so, because I only have 15 minutes
to talk to you today,
I'm going to give you a crash course in
the science of age reversal.
What we do is we use
what are called Yamanaka genes.
Yamanaka, Professor Shinya Yamanaka, won
the Nobel Prize in 2006 for discovering
that there are genes that can re-
rejuvenate a cell back to a stem cell.
Back to age zero.
Which we use all the time now in the lab
and in increasingly therapies.
But we don't want to create age zero
cells in our body, that would be cancer.
So, what we had to figure out in my lab
was, how do we reverse the age
to 75%
but not 100%?
So, we use
three of the Yamanaka genes. Just three,
not four, not five, just three. And we
discovered in 2020 that that
takes you back 75% but no more. It stops
at 75%. These three genes are called
Oct4, Sox2, Klf4.
They control other genes, but these are
the reset switch. This is the polish for
the compact disc.
We call these OSK for short. OSK.
This was the result that changed
everything for us and it got on the
cover of Nature magazine in 2020, the
world's leading scientific journal. And
the title on this
the cover of this journal was turning
back time.
This result
shows that you can rejuvenate cells,
make them young again,
and you can even regrow the tissue.
These are optic nerves in a mouse that
have been damaged.
The top one is the damaged one. The
bottom one is also damaged but
rejuvenated. Made young again so that it
can grow. And so, these mice had their
optic nerve regenerated. So, we actually
were able to show that using this
method, we could cure blindness
in in animals for the first time.
We could cure blindness.
But we didn't choose the eye because it
would work well. We chose the eye
because
we wanted to test if we could cure
blindness.
Since then, we've tested that we can
benefit and treat diseases such as
Alzheimer's disease in the brain of
mice,
multiple sclerosis,
um motor neuron disease or ALS,
um kidney disease and liver diseases.
It's not just the eye that can get
reversed and cured of diseases. It's
seemingly every part of
the body.
It's a universal reset
in the body.
And well, I believe that that's going to
be the the future of
pushing those diseases out. 10 years,
maybe one day 50 years into the future,
so we can spend our 80s and our 90s,
that decade being just as productive as
we were in our 40s and 50s.
There was a company
that I started 8 years ago called Life
Biosciences
and it's based in Massachusetts and they
are doing the clinical trials.
What they did was they tested whether
this eye treatment worked in
uh in animals higher than mice mice and
they actually tested this
uh in monkeys
and they were able to show that it also
works in animals just like us.
And as you can see from this graph,
the eye is just the beginning. We're
going to be treating
uh glaucoma, very prevalent in this
region of the world.
NAION, the next disease is a stroke in
the eye, so you can wake up blind.
There's three times more of this
condition
now than there was 10 years ago because
of the weight loss drugs.
Um the GLP-1 receptor agonist drugs
actually increase the frequency of
blindness by this NAION, like a stroke.
And then we're going to be working on
other tissues, the liver,
perhaps the lungs, hearing.
We believe we can treat every tissue
eventually, do a whole body reset of
the body to be able to be young again.
And it takes about 6 weeks.
And the world reported just last week
that the US FDA regulatory body
cleared
the way for the first age reversal human
trial.
It's a big deal. The FDA is very
supportive.
And we will know this year,
maybe in the next few months, if age
reversal works.
Initially in the eye for glaucoma and
myon to to treat blindness.
And then we will move on to the rest of
the body. And these are my colleagues at
Life Biosciences. The CEO
on the left is Michael Ringel from
Boston Consulting Group, COO. In the
middle, the lady is the CSO scientist,
Sharon Rosenzweig-Lipson. And the CEO is
Jerry.
We're very fortunate to have
some investment from this region
including from G42. So I'm very
grateful for their support.
We've just raised
around $80 million to do these trials.
And I do believe that we have a very
good chance of seeing success in the
clinic this year.
And if you're wondering,
how does this all work? What's the
biology? What should I do now to stay
healthy?
I'm going to give a shameless plug of
the book that I wrote
because this
talks about the future, talks about the
economy,
and all of the social benefits that will
come from this technology.
Thank you for having me.
Ask follow-up questions or revisit key timestamps.
The speaker, a longevity researcher from Harvard Medical School, argues that aging should be viewed as a treatable medical condition rather than an inevitable process. He introduces the 'information theory of aging,' which compares the aging body to a scratched CD where the cell loses its ability to correctly read its DNA. By using a specific subset of 'Yamanaka genes' (OSK), his team has successfully reversed cellular age and regenerated damaged tissues in animal models. The presentation highlights upcoming human clinical trials, sanctioned by the FDA, aimed at reversing biological age to treat conditions like blindness, with the ultimate goal of extending human healthspan and productivity.
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