>> A LONG-RUNNING STUDY OF LEAD EXPOSURE IN NEW ZEALAND HAS
REVEALED THAT LEAD IS EVEN MORE DAMAGING TO OUR BRAIN THAN WE
THOUGHT.
RESEARCHERS KEPT IN TOUCH WITH 600 PEOPLE FOR
DECADES, STARTING WITH ONE THEY WERE BORN ALL THE WAY UP TO THE
PRESENT.
IT WAS BETWEEN 40 AND 50 YEARS OF TRACKING PEOPLE.
THAT
WAS THE MOST RECENT PART OF
THIS STUDY.
TO LOOK AT WHAT EFFECT LED TO HAVE HAD
IN THEM ñ
WE HAVE
KNOWN FROM PREVIOUS
STUDIES THAT EXPOSURE TO LEAD HARMS YOUR BRAIN DEVELOPMENT AND
CREATES LOWER IQS AND COGNITIVE
ABILITIES WHEN YOU ARE A KID.
TO FIND OUT THAT OVER DECADES IT
HAS SOME CORROSIVE EFFECT ON
YOUR IQ AND CAUSES THEM TO DECLINE INTO MIDDLE AGE AND
BEYOND, THAT IS SCARY.
>> THIS IS DEVASTATING.
IT ACTUALLY ALSO MAKES YOU MORE INCLINED TOWARDS VIOLENCE.
>>IMPULSIVITY AND ALL THAT SORT OF STUFF.
>> IT IS DEVASTATING.
THE SECOND PART IS DISTURBING ñ ONLY 1.6
POINT DROP IN IQ LEADS TO DISASTROUS REAL-WORLD EFFECTS
WHERE YOU GOT LESS EDUCATION,
JOBS THAT DON'T PAY AS WELL AND THEIR LIVES ARE DRAMATICALLY
AFFECTED BY JUST THAT LITTLE DROP.
IF YOUR AVERAGE IQ IS 100, JUST LOSING 1.6% HAVE HUGE EFFECTS.
>> IF THERE IS MORE LEAD IN THE AREA CAN BE MORE.
>> UNDERSTAND THAT LEAD WAS IN PAINT, SOIL WATER ñ RIGHT NOW WE
HAVE A SOIL WATER CRISIS IN
CHICAGO WHERE THE LEAD IN THE SOIL IS 281 TIMES ABOVE
ALLOWABLE LEVELS.
KIDS ARE
PLAYING IN THAT SOIL.
IT WAS A LEAD SMELTER DURING PLANT.
THE
LEAD IS IN THE WATER, THE SOIL.
DO YOU KNOW WHAT THEY DID?
THEY BUILT
PROJECTS ON TOP OF THEM.
WE POISONED THESE KIDS.
BACK IN THE
DAY, LEAD WAS IN FUEL.
ALL THE CARS WERE EMITTING LEAD INTO THE
AIR AND POISONING ALL OF US.
KEVIN AT MOTHER JONES HAS
WRITTEN ARTICLES ABOUT THIS.
I AM TELLING YOU RIGHT NOW, IT IS
CONVINCING THAT THE BIG SPIKE IN
CRIME WE HAD IN THE 60S AND THE 70S AND 80S WAS PROBABLY BECAUSE
OF HOW MUCH LEAD WE PUT INTO THE AIR, THE PAINTS, AND THE WATER
AND SOIL.
GREAT NEWS IS ONCE WE GOT THE LEAD OUT ñ
>> AT LEAST FOR GAS AND PAINT FOR THE MOST PART.
>> IT DISPROPORTIONATELY AFFECTS POOR PEOPLE.
INTERESTINGLY
THOUGH NOT IN NEW ZEALAND.
IN
NEW ZEALAND LEAD IS UNIFORM THROUGHOUT THE COUNTRY.
IN
AMERICA, POOR PEOPLE LIVE IN
AREAS THAT ARE MORE AFFECTED BY LEAD.
>> THEY TEND TO LIVE IN OLDER HOUSES WHICH ARE MORE LIKELY TO
HAVE A LEAD PAINT.
ALSO THE CONCENTRATION FROM THE LEAD
EXHAUSTED FROM THE CARS WAS MUCH GREATER THAN IN YOU LIVED IN A
RURAL AREA.
>> THEY BUILT PROJECTS ON TOP OF THE LEAD SMELTERING PLANT.
THEN THEY TURNED AGAINST THE POOR PEOPLE AND SAID WHILE THEY
JUST PULL THEMSELVES UP BY THE BOOTSTRAPS.
BUT YOU BUILT THEIR
HOUSES ON TOP OF POISON.
NOW YOU WONDER WHAT IS
THE GOOD NEWS?
WE
TRIPLED THAT IN INCREASING OUR IQ BECAUSE WE TOOK LEAD OUT OF
FUEL AND SO MANY DIFFERENT
AREAS.
THERE HAS NEVER BEEN A BETTER CASE FOR REGULATION.
WHEN
YOU HEAR TRUMP TALKING ABOUT REPUBLICANS ñ REGULATION SAVED
OUR MINDS.
IT DOESN'T MEAN EVERY
REGULATION IS GREAT, BUT SOMETIMES REGULATIONS SAVE
PEOPLE FROM CAR ACCIDENTS, AND MAKE OUR LIVES SIGNIFICANTLY
BETTER.
WE WERE POISONING OUR OWN KIDS.
ONCE WE STOPPED DOING THAT, WE ARE LITERALLY A SMARTER COUNTRY.
>>WITH LOWER CRIME RATES.
REGULATIONS ARE PROTECTIONS,
PROTECTIONS FROM THE GOVERNMENT
ARE REGULATIONS.
THEY WANT YOU TO THINK REGULATIONS HURT
BUSINESS.
BUT THAT IS NOT HOW YOU SHOULD THINK ABOUT IT, IT
PROTECTS
YOU AND YOUR FAMILY.
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