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World Governments Summit: The Science of Living Longer – and Better - Plenary Session

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World Governments Summit: The Science of Living Longer – and Better - Plenary Session

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0:00

Hello everyone.

0:01

Can you hear me okay up the back? Good.

0:04

Can you understand my Australian accent

0:05

okay?

0:07

Good. Well, thank you for having me

0:08

today. I have 15 minutes to tell you

0:10

about uh what is one of the most

0:12

exciting changes for humanity that you

0:15

may not know is actually happening.

0:17

Uh I've Of course, I'm talking about

0:19

longevity

0:21

and the longevity revolution

0:23

that uh I here

0:25

stand to tell you about and represent as

0:27

a scientist in this field. Uh so, my

0:29

background briefly is I've been in the

0:32

longevity research field for 30 years.

0:35

I've watched its rapid changes.

0:38

Uh and I'm at Harvard Medical School uh

0:41

and I run a lab of about 25

0:43

PhDs. And we are pushing the boundaries

0:46

of what is possible with human health.

0:49

And it is clear to me

0:51

uh and many of my colleagues around the

0:53

world that

0:55

our generation is going to witness the

0:58

biggest change in health

1:00

since the inventions of clean water and

1:02

vaccines.

1:03

And what I'm talking about is our

1:05

ability to control our own biology.

1:09

And when that happens, and this may only

1:11

be between 10 and 20 years in the

1:13

future, we will look to back at today

1:18

at our current health care and think of

1:20

it like it is very old-fashioned if not

1:23

medieval.

1:27

So, I'm talking about aging today. And

1:29

for many years, we've

1:31

ignored aging.

1:33

If you go to a doctor, typically a

1:34

doctor says uh

1:37

"Well, you're getting old. It's normal

1:39

for you to lose your eyesight. It's

1:40

normal for you to have bad hearing. It's

1:42

normal for you to to get heart disease.

1:45

This is aging. It's normal."

1:47

And for too long, normal has equaled

1:51

acceptable. And I'm here to say that we

1:54

no longer have to think of something

1:56

that's normal being acceptable.

1:57

Everything else about our life,

2:00

the air in this room, the lights, the

2:03

clothes we wear, the cars we drive,

2:06

this is not natural. This is not normal

2:07

for humans.

2:09

But we change our world for the better,

2:12

and the same is going to be for how fast

2:14

we get older.

2:17

Aging doesn't have to be acceptable.

2:22

In my world, aging is a medical

2:24

condition

2:26

that's very common,

2:28

and it's increasingly

2:30

treatable.

2:32

So, what I show in this graph is how

2:34

rapidly the rise is of diseases as we

2:38

get older. On the bottom axis is the age

2:41

that we get,

2:42

and the diseases rise in risk as we get

2:45

older. And what I want you to see is

2:47

it's not a straight line, it's

2:49

exponential, and they all go up. So, by

2:52

the time we're 80,

2:56

almost

2:57

more than 50% of us have five or more

2:59

diseases.

3:01

And the older you get, the worse it

3:02

gets.

3:04

And the goal of my research, and people

3:07

like me around the world, is to push the

3:09

curve

3:10

in this direction, so that diseases come

3:13

later.

3:15

And the only way to do that is to tackle

3:17

aging itself.

3:20

Even if we cured all cancer today,

3:23

we would only live an average of an

3:25

extra 2 and 1/2 years.

3:28

Let that sink in.

3:30

All cancers gone today, we only live on

3:33

average another 2 and 1/2 years. Why?

3:36

Because all of the diseases are going up

3:38

at the same time.

3:39

So, we need to tackle all of the

3:41

diseases at once,

3:43

and that's aging.

3:45

Aging is the cause of these diseases.

3:47

They look different, right? In the

3:49

brain, aging is different. It looks like

3:52

Alzheimer's. In the heart, it looks like

3:54

heart disease. In the skin, it looks

3:56

like wrinkles. But, the same process is

3:58

the same in every tissue, and we can now

4:01

slow it down.

4:02

And what I'm going to tell you today

4:05

is that next month

4:07

we're going into human clinical trials

4:08

to test for the first time

4:10

in history

4:12

whether we can reverse the aging process

4:15

and cure diseases.

4:18

So, it's a very important moment.

4:22

So, this is a world forum. Uh

4:24

we want to talk about economics, I

4:25

think.

4:27

And we calculated, um my colleagues and

4:29

I in London

4:31

that the economic value to slowing aging

4:35

is tremendous. It can dramatically

4:37

improve the GDP of a country

4:40

even if you slow aging by 1 year.

4:44

You just make your population live a

4:45

healthy 1 extra year.

4:48

And for the United States, for example,

4:50

that's an extra $38 trillion.

4:53

Why?

4:54

Why? Because people are not sick, and

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they are more productive.

4:58

If you extend our lifespan by 10 years,

5:01

now that's 360

5:03

something

5:05

trillion dollars. These are big numbers.

5:07

Why? Because our greatest asset as a

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country

5:10

is not tech, it's not oil, it's not

5:13

gold. It's human resource.

5:17

Adult human productivity is the greatest

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resource of any country.

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And there's a problem now.

5:25

For most

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of the certainly the Western world,

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the rates of fertility are declining.

5:34

In 1960, the average

5:36

person was having

5:39

many more children

5:40

per thousand people

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every year there were 25 babies in the

5:44

United States

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in uh 1960, now it's around 10 babies

5:50

per thousand people.

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For the first time, more than half of

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the American states

5:57

produced fewer babies

6:00

than people died.

6:02

Half of the United States is declining

6:04

in population. So, we have less and less

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people

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to do the work.

6:09

So, there are only two solutions:

6:11

replace them with robots or keep people

6:13

alive and healthy.

6:17

The other problem is there's very little

6:19

research into aging.

6:21

Okay? In the United States, which puts

6:23

the most research dollars into aging,

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you can see on this graph, it's only 500

6:29

million

6:30

compared to

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many billions of dollars to target

6:33

individual diseases.

6:35

But, as I told you, if you target

6:36

individual diseases, you're not going to

6:38

extend lifespan by very much. You need

6:41

to tackle all of the processes at once.

6:46

Now, I'm going to give you a little

6:47

little bit of biology lesson, because

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it's very important that you understand

6:51

why we can now tackle aging when we

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couldn't do this even 5 years ago.

6:57

We can tackle aging because we now

6:58

believe we understand why we age.

7:02

And it's not wear and tear. It's not

7:03

that we just wear out like a car.

7:06

Our bodies are not like cars.

7:09

Our bodies are more like computers that

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can be programmed and reprogrammed and

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rebooted

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to be young again.

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And this graph from my uh good colleague

7:19

and friend Steve Horvath, Professor

7:21

Steve Horvath,

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showed that you can even measure

7:24

changes, chemical changes on our DNA

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in our blood or anywhere, we can take a

7:30

cheek swab from our mouth, and we can

7:32

measure how old we are.

7:34

Not by our birthdays,

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which is called chronological age,

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but by how fast of all, is getting

7:41

older. We call this our biological age.

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And there's a very specific measure for

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how old we are biologically.

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And these are chemicals that get changed

7:51

on the DNA. Our DNA is not pure, it's

7:54

not just clean. It gets chemicals added

7:57

on and off as we get older and we can

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measure those with sequencing machines

8:01

and predict not just how old somebody

8:04

is, but more importantly how sick they

8:06

will be in the future and even when they

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will die.

8:10

And the in the United States, you can

8:12

buy a kit and take a cheek swab or take

8:14

a blood sample and the company will tell

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you how old you are biologically and how

8:21

long you might live if you don't change

8:23

your health. And you can see on this

8:24

graph some people are much younger than

8:26

others even if they have the same

8:28

birthday.

8:32

Now, this is the theory that comes from

8:33

my lab at Harvard. It's called the

8:35

information theory of aging and this is

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the idea

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that we are like computers, not

8:40

machines.

8:43

One analogy and hopefully you all

8:46

remember what a compact disc is.

8:48

Uh I think you do. When I teach

8:50

students, sometimes I have to tell them

8:51

what is a CD.

8:53

Um but what we think it aging is, aging

8:57

is like

8:59

scratches on a CD.

9:01

The DNA is the music.

9:03

So, we get beautiful music when we're

9:05

young, but when we get old, we cannot

9:07

read the beautiful music. Our cells do

9:09

not read the DNA correctly. So, the

9:12

cells they become lost, they become

9:15

uh confused and our old cells do not

9:18

make the right proteins and they they

9:20

get diseases.

9:21

This we believe is aging.

9:24

But what's amazing is we found that you

9:26

can polish the CD, you can get rid of

9:28

the scratches

9:29

and rejuvenate cells so they're young

9:32

again.

9:33

And put to put it another way, you can

9:36

reinstall the software of the body so

9:38

that it's young again.

9:39

We can quite literally in my lab

9:42

reverse the age of cells

9:44

and of very complex organs and tissues,

9:48

including the eye, the most complex,

9:51

and the brain.

9:52

We can reverse aging

9:54

by 75%

9:56

in 6 weeks.

9:59

And I'll show you what happens when we

10:00

do that.

10:03

This is the opposite experiment we did.

10:06

This is what happens when you scratch

10:08

the CD, when you corrupt the software of

10:10

an animal.

10:11

We're putting those chemicals on the DNA

10:14

and making it get older faster.

10:16

And you can see the mouse on the right

10:19

is

10:20

uh the brother of the other brother,

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born on the same day,

10:24

same age,

10:26

but one of them we accelerated the aging

10:29

process. We scratched the CD of this

10:32

mouse.

10:34

Good evidence that the information

10:35

theory of aging

10:37

may be correct.

10:39

And what we like to say in my lab is if

10:40

you can give something, you can take it

10:43

away.

10:44

So, we started working on how to reverse

10:46

aging, not just accelerate it.

10:50

So, the question was, is aging

10:53

in us

10:55

reversible?

10:57

We know that we can reverse it when we

10:58

have children.

10:59

Our baby Our babies are not born 30

11:01

years old or 40 years old, depending on

11:03

the parents, because on the seventh day

11:06

of fertilization, after you have a

11:09

conception,

11:10

on day seven, the baby goes back in age.

11:13

There's a reset of the age when we're

11:15

very young.

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But can you do this

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in our bodies

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when we're older, when we're 40, when

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we're 50, even when we're 90? Can you do

11:24

this? And can it be safe ever?

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And I believe it can.

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And so, because I only have 15 minutes

11:31

to talk to you today,

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I'm going to give you a crash course in

11:34

the science of age reversal.

11:37

What we do is we use

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what are called Yamanaka genes.

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Yamanaka, Professor Shinya Yamanaka, won

11:44

the Nobel Prize in 2006 for discovering

11:48

that there are genes that can re-

11:50

rejuvenate a cell back to a stem cell.

11:53

Back to age zero.

11:55

Which we use all the time now in the lab

11:57

and in increasingly therapies.

11:59

But we don't want to create age zero

12:01

cells in our body, that would be cancer.

12:04

So, what we had to figure out in my lab

12:05

was, how do we reverse the age

12:08

to 75%

12:10

but not 100%?

12:12

So, we use

12:13

three of the Yamanaka genes. Just three,

12:16

not four, not five, just three. And we

12:19

discovered in 2020 that that

12:22

takes you back 75% but no more. It stops

12:24

at 75%. These three genes are called

12:27

Oct4, Sox2, Klf4.

12:30

They control other genes, but these are

12:32

the reset switch. This is the polish for

12:34

the compact disc.

12:36

We call these OSK for short. OSK.

12:41

This was the result that changed

12:42

everything for us and it got on the

12:46

cover of Nature magazine in 2020, the

12:49

world's leading scientific journal. And

12:51

the title on this

12:52

the cover of this journal was turning

12:55

back time.

12:58

This result

12:59

shows that you can rejuvenate cells,

13:02

make them young again,

13:04

and you can even regrow the tissue.

13:06

These are optic nerves in a mouse that

13:08

have been damaged.

13:09

The top one is the damaged one. The

13:11

bottom one is also damaged but

13:13

rejuvenated. Made young again so that it

13:16

can grow. And so, these mice had their

13:19

optic nerve regenerated. So, we actually

13:21

were able to show that using this

13:23

method, we could cure blindness

13:26

in in animals for the first time.

13:29

We could cure blindness.

13:31

But we didn't choose the eye because it

13:33

would work well. We chose the eye

13:35

because

13:36

we wanted to test if we could cure

13:38

blindness.

13:39

Since then, we've tested that we can

13:42

benefit and treat diseases such as

13:45

Alzheimer's disease in the brain of

13:47

mice,

13:48

multiple sclerosis,

13:50

um motor neuron disease or ALS,

13:53

um kidney disease and liver diseases.

13:56

It's not just the eye that can get

13:57

reversed and cured of diseases. It's

14:00

seemingly every part of

14:02

the body.

14:04

It's a universal reset

14:06

in the body.

14:08

And well, I believe that that's going to

14:09

be the the future of

14:11

pushing those diseases out. 10 years,

14:15

maybe one day 50 years into the future,

14:17

so we can spend our 80s and our 90s,

14:20

that decade being just as productive as

14:23

we were in our 40s and 50s.

14:27

There was a company

14:28

that I started 8 years ago called Life

14:31

Biosciences

14:32

and it's based in Massachusetts and they

14:34

are doing the clinical trials.

14:36

What they did was they tested whether

14:37

this eye treatment worked in

14:41

uh in animals higher than mice mice and

14:43

they actually tested this

14:46

uh in monkeys

14:48

and they were able to show that it also

14:49

works in animals just like us.

14:52

And as you can see from this graph,

14:54

the eye is just the beginning. We're

14:56

going to be treating

14:58

uh glaucoma, very prevalent in this

14:59

region of the world.

15:01

NAION, the next disease is a stroke in

15:04

the eye, so you can wake up blind.

15:07

There's three times more of this

15:08

condition

15:09

now than there was 10 years ago because

15:11

of the weight loss drugs.

15:13

Um the GLP-1 receptor agonist drugs

15:16

actually increase the frequency of

15:18

blindness by this NAION, like a stroke.

15:21

And then we're going to be working on

15:23

other tissues, the liver,

15:25

perhaps the lungs, hearing.

15:27

We believe we can treat every tissue

15:30

eventually, do a whole body reset of

15:34

the body to be able to be young again.

15:36

And it takes about 6 weeks.

15:41

And the world reported just last week

15:44

that the US FDA regulatory body

15:49

cleared

15:50

the way for the first age reversal human

15:53

trial.

15:54

It's a big deal. The FDA is very

15:56

supportive.

15:57

And we will know this year,

16:00

maybe in the next few months, if age

16:02

reversal works.

16:04

Initially in the eye for glaucoma and

16:06

myon to to treat blindness.

16:08

And then we will move on to the rest of

16:10

the body. And these are my colleagues at

16:12

Life Biosciences. The CEO

16:15

on the left is Michael Ringel from

16:17

Boston Consulting Group, COO. In the

16:19

middle, the lady is the CSO scientist,

16:22

Sharon Rosenzweig-Lipson. And the CEO is

16:25

Jerry.

16:26

We're very fortunate to have

16:28

some investment from this region

16:30

including from G42. So I'm very

16:33

grateful for their support.

16:36

We've just raised

16:38

around $80 million to do these trials.

16:40

And I do believe that we have a very

16:42

good chance of seeing success in the

16:44

clinic this year.

16:47

And if you're wondering,

16:48

how does this all work? What's the

16:50

biology? What should I do now to stay

16:53

healthy?

16:55

I'm going to give a shameless plug of

16:58

the book that I wrote

17:00

because this

17:02

talks about the future, talks about the

17:04

economy,

17:05

and all of the social benefits that will

17:08

come from this technology.

17:11

Thank you for having me.

Interactive Summary

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.

Suggested questions

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