HT Image
HT Image

Pollution may affect kids' IQ

Kids living in polluted neighbourhoods may be less intelligent than those residing in cleaner areas, finds study.
By HT Correspondent | Reuters, New York
UPDATED ON FEB 18, 2008 11:25 AM IST

Kids who live in neighbourhoods with heavy traffic pollution have lower IQs and score worse on other tests of intelligence and memory than children who breathe cleaner air, a new study shows.

The effect of pollution on intelligence was similar to that seen in children whose mothers smoked 10 cigarettes a day while pregnant, or in kids who have been exposed to lead, Dr Shakira Franco Suglia of the Harvard School of Public Health in Boston, the study's lead author, told Reuters Health.

While the effect of pollution on cardiovascular and respiratory health has been studied extensively, less is known about how breathing dirty air might affect the brain, Suglia and her team write in the American Journal of Epidemiology.

To investigate, she and her colleagues looked at 202 Boston children 8 to 11 years old who were participating in a study of maternal smoking. The researchers related several measures of cognitive function to the children's estimated exposure to black carbon, a component of the particulate matter emitted in automobile and truck exhaust, particularly by diesel vehicles.

The more heavily exposed children were to black carbon, the lower were their scores on several intelligence tests.

When the researchers adjusted for the effects of parents' education, language spoken at home, birth weight, and exposure to tobacco smoke, the association remained.

For example, heavy exposure to black carbon was linked to a 3.4-point drop in IQ, on average. Heavily exposed children also scored lower on tests of vocabulary, memory and learning.

"It's within the range for in utero tobacco exposure and lead exposure," Suglia said in an interview.

She pointed out that exposure to traffic pollution has been associated with a number of other harmful effects and that, short of moving away from heavy traffic areas, there's not much people can do to limit it.

She and her colleagues suggest that traffic pollution may exert harmful effects by causing inflammation and oxidative damage to the brain. They call for further research on the effects of pollution on the development of intelligence in children and on cognitive decline for people of all ages, including whether traffic exposure might cause or accelerate brain degeneration in conditions such as Alzheimer's disease and Parkinson's disease.

SHARE THIS ARTICLE ON
Close
Disha Patani shares fitness video on International Women's Day(Instagram/dishapatani)
Disha Patani shares fitness video on International Women's Day(Instagram/dishapatani)

International Women's Day: Disha Patani shows how strong she is in fitness clip

By Nishtha Grover, Delhi
PUBLISHED ON MAR 08, 2021 01:36 PM IST
  • Disha Patani is known for her extreme workout sessions. The Bharat actor took to Instagram on International Women's Day and shared a glimpse from her martial arts session to show how strong she is.
Close
Twilight star Nikki Reed flaunts Acro Yoga in 'sweet capture' by Ian Somerhalder(Instagram/nikkireed)
Twilight star Nikki Reed flaunts Acro Yoga in 'sweet capture' by Ian Somerhalder(Instagram/nikkireed)

Twilight star Nikki Reed flaunts Acro Yoga in 'sweet capture' by Ian Somerhalder

By Zarafshan Shiraz
UPDATED ON MAR 08, 2021 01:38 PM IST
  • American actor and The Twilght Saga’s Rosalie Hale aka Nikki Reed flaunts her acro sport skills in latest fitness post as hubby and Vampire Diaries star Ian Somerhalder captures her in the middle of the jaw-dropping exercise move. Here’s why you should give Acro Yoga workout a try too
Close
Ishaan Khatter gives fitness twist to ‘let’s meet at the bar’ and we are in awe(Instagram/ishaankhatter)
Ishaan Khatter gives fitness twist to ‘let’s meet at the bar’ and we are in awe(Instagram/ishaankhatter)

Ishaan Khatter gives fitness twist to ‘let’s meet at the bar’ and we are in awe

By Zarafshan Shiraz
UPDATED ON MAR 08, 2021 12:41 PM IST
  • Ishaan Khatter raises the bar of fitness motivation as we enter a new week and we are too inspired to follow his version of ‘when someone says let’s meet at the bar’. Here’s why
Close
Khloe Kardashian(Instagram)
Khloe Kardashian(Instagram)

Here's how Khloe Kardashian uses fitness to ease stress and anxiety

By hindustantimes.com | Edited by Alfea Jamal, Hindustan Times, Delhi
PUBLISHED ON MAR 07, 2021 07:17 PM IST
Keeping up with the Kardashians star Khloe Kardashian recently shared her self-care strategy and how she eases out stress and anxiety.
Close
When patients with Covid-19 arrive in emergency rooms, there are relatively few ways for doctors to predict which ones are more likely to become critically ill and require intensive care and which ones are more likely to enjoy a quick recovery.(Pixabay)
When patients with Covid-19 arrive in emergency rooms, there are relatively few ways for doctors to predict which ones are more likely to become critically ill and require intensive care and which ones are more likely to enjoy a quick recovery.(Pixabay)

Blood tests can act as early indicator of extreme Covid-19: Study

ANI, Washington [us]
PUBLISHED ON MAR 07, 2021 05:31 PM IST
A clinical report drove by the journal 'Blood Advances' has claimed that a progression of biomarkers, or organic signs, related to white platelet initiation and obesity can anticipate extreme outcomes in Covid-19 patients.
Close
The study representing nearly two million adults worldwide was published in the American Heart Association's flagship journal Circulation.(Unsplash)
The study representing nearly two million adults worldwide was published in the American Heart Association's flagship journal Circulation.(Unsplash)

Eating daily servings of fruits and vegetables helpful for longer life

ANI, Dallas [us]
PUBLISHED ON MAR 07, 2021 03:29 PM IST
Researchers during a recent study found that eating about five daily servings, two of which were fruits and three vegetables, is likely the optimal amount needed in order to sustain longer life.
Close
The variations result from differences in recommendations for and consumptions of individual foods within the six main food groups - protein foods, dairy, grains, fruits, vegetables, and oils/fats.(Pixabay)
The variations result from differences in recommendations for and consumptions of individual foods within the six main food groups - protein foods, dairy, grains, fruits, vegetables, and oils/fats.(Pixabay)

Study uncovers association of greenhouse gas emissions with dietary guidelines

ANI, Washington [us]
PUBLISHED ON MAR 07, 2021 01:32 PM IST
A study drove by the Nutrition Journal, involving seven countries discovered that greenhouse gas emissions associated with national dietary guidelines advocating a healthy diet vary greatly between countries.
Close
In a paper published in Biochemical and Biophysical Research Communications, researchers looked at the effect of feeding mice a high-fat diet on oxidative stress levels on heart cells.(Unsplash)
In a paper published in Biochemical and Biophysical Research Communications, researchers looked at the effect of feeding mice a high-fat diet on oxidative stress levels on heart cells.(Unsplash)

Study uncovers high fat diets may lead to greater risk of heart attacks

ANI, Washington [us]
PUBLISHED ON MAR 07, 2021 11:48 AM IST
A study led by a team of researchers from the University of Reading uncovered that consumption of high-fat diets may over-activate destructive heart disease protein, increasing the risk of a heart attack.
Close
Vicky Kaushal shares new fitness video(Instagram story/ vickykaushal09)
Vicky Kaushal shares new fitness video(Instagram story/ vickykaushal09)

Vicky Kaushal sweats it hard in the gym to earn that weekend cheat meal

By Nishtha Grover, Delhi
PUBLISHED ON MAR 07, 2021 08:42 AM IST
  • Vicky Kaushal recently shared a glimpse of himself sweating it hard in the gym in order to earn his weekend cheat meal. We can say that the clip is inspiring us to start our Sunday with a fitness session as well.
Close
Representational Image(Unsplash)
Representational Image(Unsplash)

Here's how green tea is beneficial for children with Down syndrome

ANI, Washington Dc
PUBLISHED ON MAR 06, 2021 07:54 PM IST
According to a new study, green tea supplements modulate facial development in children with Down syndrome.
Close
Representational Image(Unsplash)
Representational Image(Unsplash)

Here's how unstable work-life linked to future mental health problems in youth

ANI, Washington Dc
PUBLISHED ON MAR 06, 2021 07:41 PM IST
A new study has found that a precarious, unstable initiation by young people to working life is associated with poorer future mental health.
Close
Type 2 diabetes could be prevented through regular exercise, says study(Photo by Anupam Mahapatra on Unsplash)
Type 2 diabetes could be prevented through regular exercise, says study(Photo by Anupam Mahapatra on Unsplash)

Type 2 diabetes could be prevented through regular exercise, says study

ANI
PUBLISHED ON MAR 06, 2021 06:23 PM IST
According to a new study, regular physical activity or exercising is a safe diabetes prevention strategy for people, especially those residing in relatively polluted regions.
Close
Should you eat dates before bed or empty stomach to reap maximum health benefit?(Photos by Saj Shafique and Mona Mok on Unsplash)
Should you eat dates before bed or empty stomach to reap maximum health benefit?(Photos by Saj Shafique and Mona Mok on Unsplash)

Should you eat dates before bed or empty stomach to reap maximum health benefit?

By Zarafshan Shiraz
UPDATED ON MAR 06, 2021 02:54 PM IST
  • Being high in fiber and sugar content, dates or khajur often leave people speculating about whether they should be consumed after soaking over night or raw or on empty stomach or before going to bed. Read on to know when is the best and worst time to eat dates
Close
Katrina Kaif shares unseen workout video(Instagram/ katrinakaif)
Katrina Kaif shares unseen workout video(Instagram/ katrinakaif)

Katrina Kaif takes squats up a notch with resistance band in new fitness video

By Nishtha Grover, Delhi
PUBLISHED ON MAR 06, 2021 12:52 PM IST
  • Katrina Kaif recently hosted an Ask Me Anything session on Instagram and shared never seen before images and videos with her fans. She also posted about her healthy breakfast and intense fitness routine.
Close
The study highlighted the ways that public health interventions and policies can better support quit attempts and harm reduction, both during the Covid-19 pandemic and beyond.(Pixabay)
The study highlighted the ways that public health interventions and policies can better support quit attempts and harm reduction, both during the Covid-19 pandemic and beyond.(Pixabay)

Covid-19 lockdown linked to uptick in tobacco use: Study

ANI, Washington [us]
PUBLISHED ON MAR 06, 2021 12:33 PM IST
A new study has found that pandemic-related anxiety, boredom, and irregular routines were cited as major drivers of increased nicotine and tobacco use during the initial Covid-19 lockdown.
Close
SHARE
Story Saved
OPEN APP