[Music]
Hey there, I'm Dr. Sanjay Gupta. Koi is
on vacation this week, but I got to tell
you, I'm really excited to spend the
next 10 minutes with all of you. And
we've got a great show today. So, let's
get started. We begin with millions of
people across the United States facing
an unprecedented and dangerous heat
wave. In fact, Tuesday was the hottest
day in over a decade for parts of the
East Coast. In the Midwest, some roads
in Wisconsin, Iowa, and Missouri were
closed. Why? Because they were buckling
under the searing heat. Meteorologists
say this is all because of what is known
as a heat dome. That's when a ridge of
high pressure builds over an area and
then doesn't move for up to a week or
more. This high pressure can result in
lots of sunshine, very few clouds, but
that also means sinking air. And when
air sinks, it warms and that causes
temperatures to rise even higher. The
dome is created because the air simply
can't escape. Now, the climate crisis is
expected to make heat domes more
frequent and even hotter. So, what are
the effects of these high temperatures
on our bodies and on our health? And how
can we adapt? CNN senior climate
reporter Lara Patterson put her body to
the test under extreme heat, extreme
humidity to highlight the health dangers
of a warming world.
Good job. Everything that's going on
with my body made that hard. We're here
at the University of South Wales in the
UK and behind me here is an
environmental chamber where scientists
can control the temperature. And so
they're going to crank the temperatures
up to about 40° C, 104° F. And the whole
point of this exercise is to see what
impact extreme heat has on my body. This
on my head is measuring brain blood
flow. Here is measuring skin temperature
on my leg. They're going to be looking
at cognitive functions like how is my
decision- making affected by the heat.
We need to understand what it's going to
be like living in a much hotter world.
Okay, Laura. So, you're fully
instrumented. You're ready for action,
ready for liftoff.
It's 40° now, 20% humidity, and I can
really feel it starting to sweat. My
face is getting very hot. My skin
temperature's gone up by a couple of
degrees. Doing a really, really good job
here.
It's 40° C, but it's 85% humidity. And
the difference is intense. It's like a
sauna in here. This is really, really
tough. My hands feel a bit shaky.
Everything feels tiring. Even breathing
feels weird. Stop. Great job.
Mission accomplished. So, it's not easy.
Now, you've got a marketkedly depressed
increase in exercise induced blood flow
to the brain. It's gone from 600 ml per
minute to 400. That's really
significant, which is huge. You're not
getting enough fuel into the brain.
You're not burning enough fuel to be
able to make the right decisions. You
would make potentially wrong decisions,
rash decisions, and a much larger
increase in pressure during exercise.
So, your heart is working a lot lot
harder, probably about 30% harder just
because of that increase in temperature
and humidity. older patients, you know,
this is a big deal for them. Um, and
they wouldn't be able to do the simplest
tasks, even stand up to get out of a
chair from a cardiovascular perspective.
That would just be too demanding. We're
seeing now around the world is this
really humid heat that is pushing places
to the limits of survivability. We're
seeing stronger heat waves, more humid
weather, and the impacts on the body are
pretty overwhelming.
All right, time for 10 trivia. At what
age is your brain considered fully
formed? Is it 15, 18, 25, or age 30?
If you said 25, you're right. You know,
brain development actually begins from
the back of the brain and then works its
way to the front as you age. As a
result, your frontal loes, which control
things like planning and reasoning and
judgment, they are the last things to
strengthen the last part to structure
connections. Now, imagine writing an
essay with the help of AI. Maybe some of
you have even experimented one of these
programs like chat GPT. You give it an
assignment. You give it a prompt like
write a book report on to kill a
mockingb bird and in just mere seconds
it types out the report. It's pretty
amazing. And it sounds easy, right?
Well, a new study is raising questions
about what that could mean for your
brain in the long run. Researchers at
MIT studied three groups of students.
One group used Chat GPT to help write
their essays. Another used Google search
engine to write the essay, and a third
group relied only on their own brains,
no tech tools at all. And here's what
they found. Scientists use brain scans
called EEGs. and they saw big
differences. In fact, the students who
didn't use any tools, they showed strong
activity in several areas of the brain,
including the prefrontal cortex we just
talked about that's responsible for
focus and complex learning, but also
what is known as the occipital parietal
region, which is back here. That's more
linked to visual processing and
reasoning. Now, the Google search group,
they showed moderate or intermediate
levels of engagement in those same
areas. Meanwhile, importantly, the
students who used AI showed much weaker
brain connections, meaning their brains
simply weren't working as hard. Now,
when some students switched from using
AI to writing without it, their brains
sort of struggled to re-engage. Others
who started using AI suddenly did
remember more facts, but weren't able to
think as deeply. So, what does this all
mean for you? Well, critics worry that
using AI too much could make us quote
mentally lazy, relying on a machine
instead of practicing thinking for
ourselves. But on the other hand,
supporters compare AI to calculators. We
don't do math problems by hand anymore.
Not very much anyway. They say AI can do
sort of the same thing. Save time, spark
ideas, and help students learn if used
the right way. Whatever the case may be,
my advice as a dad and as a neurosurgeon
is this. Stay curious. Challenge your
brain however you can and don't let the
tech do all the work. What do you think
about this? Press pause and discuss.
Would AI help you improve your writing
or would it make you mentally lazy? How
do you think teachers and professors
should address the use of AI for
homework? Is it considered cheating? Why
or why not? In sports news, the NBA
draft was held on Wednesday night and
the Dallas Mavericks selected Duke
University forward Cooper Flag. He was
the number one overall pick. The
18-year-old is the second youngest
player ever to be drafted number one
overall. Only LeBron James was younger
when he was selected by the Cleveland
Cavaliers in 2003. But performance in
college isn't the only thing teams
consider when making their picks. CNN's
Omar Jimenez got the opportunity to
experience an NBA draft workout. Now, as
a former college athlete at Northwestern
University, Omar is no stranger to the
court. Check this out.
Game time right here. Yeah.
Yes, sir. What does it actually take to
get drafted to the NBA? What's up,
Jaylen? How's it going, Omar? Omar
Mendes. I met up with Brooklyn Nets
forward Jaylen Wilson and assistant
coach Jay Hernandez. Hand behind. Let's
get warmed up. Who quickly put me to the
test. There it is. Like every workout
they go into, they're like, "How can I
make this team draft me?" And you have
three, four, five other guys who have
the same mindset as well in the workout
with you. Now, the real tests. In 3
minutes for a pro, we are expecting them
to make a minimum of 30 shots. A lot of
They're watching your percentage on
something like this. Yeah, they're
tracking every shot. All right, so we'll
go for a minute. Jay will be your
passer. We only start on a make. Great.
So get you going. I'll keep track.
Okay. Not starting yet.
[Music]
Started yet. There it is. There.
Oh yeah. Give me that. Give me that.
It's longer than the college three.
Give me that. Eight. Seven. Oh yeah.
Six. Five. Four. Give me one more. Give
me one more. Two. One. Tough. Right.
Yeah. Good job. 10. How much did you
feel like your draft stock was truly
going up or down based on the last few
weeks? I think you just have the
confidence from the workouts. Obviously,
like I did like 15 workouts. Not all of
them are going to be the best workout
that you've ever had, but not as many as
as bad as I'm doing right now, but it's
all good. I just want to point out,
we're just in the warm-ups. I'm already
just dripping sweat. As you get close
enough, I'm going to pop it one way or
the other. You'll have to attack the uh
the open space.
Yes.
Nice, Omar. I like that.
Yes. Good.
Good attack. Hey. Hey. If you could
speak to your pre-draft self, what would
you tell that Jaylen? I would just tell
the old me just to not worry about it.
Just to play basketball and understand
you can only control as much as you can
control. Like I was 51 51st pick in the
draft. So I feel like I was higher than
that. But obviously other teams didn't.
Dribble. I feel like I just had a chip
on my shoulder. No matter how much money
or how many years you've been playing,
someone's just like in this draft is
coming to to take your spot.
[Applause]
Today's story getting a 10 out of 10. A
state prison in Washington that is
offering fruitful skills while inmates
served their time. These men are able to
take courses in beekeeping, gardening,
even chicken farming. The greenhouse on
the prison property started with $500
worth of seeds from a nonprofit and the
inmates grow all types of different
produce, squash, lemons, avocados, and
then the fruits and veggies, they are
donated to a local food bank. He donates
it all out there. And it's good to know
that there's people out there,
especially like right now, you know,
when all the fundings are cut and
everything else, I see on the news every
day for food banks. And now when we get
to donate 40 50,000 lbs of food, it's
it's great. The initiative has been so
successful that it has inspired eight
other Washington correction facilities
to start their own gardening programs.
All right, superstars. Time for the best
part of the show. We've got two
shoutouts today. Decker Middle School in
Austin, Texas. Thank you for watching us
during your summer breakthrough program.
And this shout out goes all the way to
Nanjing, China, where the high school
affiliated to Nanjing Normal University
has been tuning in as well. Koi, he's
going to be back next week, so don't
forget to come back for an all new
summer Friday episode. In the meantime,
stay hydrated, wear your sunscreen, and
have a great weekend. This is CNN 10.