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Acquiring Immunity | Rebecca Greenblatt, PhD | TEDxYouth@ClintonSquare


my story begins in a tiny little town in

central Pennsylvania you kind of go to

the middle of nowhere and turn left and

it’s a farm country mostly dairy cattle

there were 82 kids in my high school

graduating class and it was not because

a lot of us failed when we got our first

walmart in town that was big news for us

and that was where I spend my childhood

except for one year the one year that I

was 14 we moved from the small town in

Pennsylvania to an equally small town

this one different because it was in

Massachusetts and for my family that

move was mostly a disaster the new

situation didn’t work out spent 14

months a high family drama dealing with

moving they’re moving back buying a

house selling a house you know in

retrospect my parents really could have

done without the whole process but for

me the one cool thing that came out of

this a whole disaster process was that I

had a fantastic biology course that year

so it’s my freshman year of high school

I had this really enthusiastic and

inspiring teacher she talked about

intracellular proteins like they were

rock stars and she was a woman which was

not necessarily usual for a high school

small town science teacher at that time

so that year living in that environment

where i had that course i was totally

psyched up about and that teacher who

was really inspiring and I was living

however briefly near Boston which is

where the headquarters of all the big

biotechnology firms were at the time I

came up with the plan so the plan was

going to be my course for the entire

rest of my career I was going to go to

college major in biology I was going to

go to graduate school get a PhD and then

I was going to go work for one of these

cool biotech firms where you can cure a

disease and get rich doing it so looking

back I’d say I know my new myself at

that point well enough to know that I

wanted to be involved in healthcare and

I wanted to use my personal skills and

aptitudes to help people I just also had

the teenage thing going on where i was

going to be rich and famous to it

probably know some people like that so

for the next 14 years I’ve

all of the plan I did go to college and

major in biology I did go to graduate

school and get the PhD I met and married

my husband while I was at it so

everything was perfect except that it

wasn’t because the further along I got

on the plan the more time I spent in the

research lab doing science and the more

I started to feel like I kind of wanted

to be doing something else and that was

a really strange thing for me to be

thinking at that point because the plan

had been to do research and I was doing

research so what was the problem I tried

switching labs I tried spend it’s more

time paying attention to my feelings and

what I found was that no matter where I

was working my favorite parts of

research were not designing the

experiments and getting the results back

which is what scientists are supposed to

be totally psyched up about my favorite

parts were teaching the younger students

how to do their experiments and then

presenting our result of conferences so

across my mind if what I like most is

the teaching and the describing you know

maybe what I really want to be doing is

teaching not research and that was a

pretty complicated thing for me to be

thinking right then because scientists

get kind of an attitude about people who

leave research you know to get from the

point where you’re a high schooler who

loves a science to the point where

you’re a junior investigator running

your first research lab it’s about 15

years worth of work and not everybody

makes it the whole way you know the

hours are long the pay isn’t great and

to get a good professor job in today’s

job market your work can’t be just good

enough it’s got to be amazing so there

are a lot of people who leave science to

do something that has a better work-life

balance to it or the pays more they kind

of get looked at of sellouts and there

are a lot of people who leave because

they just got tired of it couldn’t take

it anymore never got that great paper

that got him a job and they kind of get

looked at its washouts so here I was 14

years in on the plan looking at washing

out research and I was feeling really

insecure about that so I kind of tended

definitely mentioned the idea you know

first my husband and then to come of our

friends and family and they all gave me

this totally deadpan like if you want to

teach then you should teach because to

them that was a no brainer but I really

needed to hear that at that time in my

life because I had gotten to the point

where I was dragging myself to work

doing a job that wasn’t really doing it

for him

anymore and I’m kinda knew I needed to

make a change but to find the courage to

actually do it took their support their

support immunized me against my doubts

and so I did go ahead and make the big

jump and it’s been fantastic what I love

about teaching first is the students

Millennials are awesome do not let

anybody tell you otherwise second is I’m

still involved in all of my favorite

parts of science you know the

discoveries the Wonder the germs so if

you look under a microscope your human

cells are going to be big so these three

guys here with the green outsides and

the blue nuclei are your human cells

they’re good sized much smaller than

them are bacteria and then if you wanted

to see viruses you would have to even

zoom in again because viruses are

another order of magnitude or more

smaller than bacteria so what I want you

to notice about these germs first off is

they’re small they are everywhere germs

are enough they are on us they’re on

every surface you touch from cell phones

to doorknobs and they are devious little

things they can attach to ourselves they

can live inside our bodies they can

strip our nutrients out of us and of

course if too many of them grow to

successfully inside of you they can kill

you so hand in hand with microbiology

comes the science of immunology which is

learning how our bodies prevent that

microbial overload from happening

immunology has kind of two main branches

to it the first one is innate immunity

which is the defense’s that your body

runs 24 7 to protect you from germs of

all kind and innate immunity includes

some things you wouldn’t necessarily

think of if somebody says the phrase

immune system like for example your skin

your clean intact skin is a fantastic

barrier against germs of every kind

which is why you put a sterile bandage

on a cut when you get one because broken

skin is much more susceptible to

infection it’s not until germs get past

that outer layer of innate structural

defenses that you start needing all

those white blood cells that people

usually think about those germ-killing

white blood cells here they’re in orange

are mostly members of the other grouping

which is adaptive immunity so unlike

innate immunity which ones 20

47 for your whole life adaptive immunity

is something your body learns to do by

experience every time you get an

infection you raise a couple of families

of white blood cells that learn to

protect you specifically from that

infection they clear it out and

importantly they remember it so it later

on if the same germ tries to double back

and in fact you again it’ll be

recognized much more quickly and

eliminated much more quickly so what

does all this have to do with you for

starters based on my experience what I

would really like to tell you to do is

do dream big make the big plan imagine

yourself ten 15 20 years out really

happy really fulfilled with where you

are professionally then break it down

break it into simple achievable steps

that you can write out on a list and

that you can check off as you go along

anybody can daydream about being

anything but when you break it down into

a plan you’ve made it into a long-term

plan not a daydream anymore a long-term

plan is real having that checklist in

front of you that you know you’re going

down and you can look at and hold is

your innate immunity it’s the thick skin

that you need to protect you when people

doubt your dream one of the simplest and

most powerful things that you can do

when you go to make up your checklist is

to take meetings with a couple of people

who’ve achieved something similar to

what you want and ask them how they got

where they are most adults are totally

happy to take a meeting with a student

and talk about their career path most of

us are flattered to be asked if you’re

not at the point yet where you feel like

you’re quite ready to talk to a person

check out the jobs and careers section

of your local library or your school

guidance office next and importantly I

wish for you that you would remember

what I almost forgot that as you go

along your plan check-in off the steps

you own the plan the plan does not own

you by the time that you’ve checked off

a few of those steps you are going to

know yourself and your field of endeavor

better than you did when you first made

up the list so the final goal may drift

a bit and that’s okay the real final

goal is for you to be happy and

fulfilled not for you to have job X if X

changes into y that’s alright because as

you went down your list checking off

each of those steps

each of those completed experiences with

something that you accomplished you own

it belongs to you and it’s part of you

that’s your adaptive immunity the

experience that will protect you when

the doubts are coming from inside of

yourself so please take what I learned

plot your course make your goal live

your dream [Applause]

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