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In one study , young male laboratory rats put under chronic stress showed arapid, shallow breathing pattern when inhaling polluted air –unlike rats exposed only to the pollution. The researchers created a stressful environment by placing theyoung male rat in the home cage of an older, dominant male twice aweek. The stressed rats had higher levels of molecules associatedwith inflammation in their blood. Also, in East Boston, children who were previously exposed tocommunity violence were more likely to show signs of asthma whenbreathing traffic-related air pollution than children in lessviolent neighborhoods. "This suggests a model where stressimpacts the child"s susceptibility to pollution," saidClougherty. In addition to asthma, this may make low-income children morepredisposed to diabetes, heart disease and even dementia later inlife. Kids living with violence also may experience more wear and tear ontheir DNA, damage that has been linked to disease later in life,according to a Duke University study published in April. Susceptibility starts in the womb. Exposure to stress and pollutionbefore birth and during early childhood may be particularly harmfulbecause "both may alter development of the brain, lungs andnervous system during these critical periods," said RosalindWright. This raises an important question: Are people protected by policiesthat just consider their chemical exposures without looking attheir living conditions, too? Many scientists think not. Increased risks due to social status are "a criticallyimportant but neglected area within risk assessment, and should beincorporated in the future," Harvard epidemiologists JoelSchwartz and David Bellinger and Johns Hopkins" Thomas Glasswrote in a 2011 report. Schettler said "this new understanding has the potential tochange the way we think about interventions for low-incomechildren." Some scientists already are working on ways to intervene to protectchildren. Enrichment – exploring, interacting and playing– may reduce the effects of pollution. Improving kids' lives "This new understanding has the potential to change the way wethink about interventions for low-income children." – Ted Schettler, Science and Environmental Health Network Tomas Guilarte, a neurotoxicologist at Columbia University in NewYork, showed that it was possible to reverse cognitive effects of leadpoisoning in rats by improving their environment. Rats that had been lead-poisoned during early development and hadcognitive deficits as young adults were removed from their solitarylaboratory cages and housed in groups of eight in enrichment cages,which included multiple levels, a running wheel and toys. Every week Guilarte's team put new toys in the cage. "Therewas a constant novelty that they would explore each week," hesaid. The lead-exposed rats in the enriched cages performed equally wellon learning tests as those that had never been exposed to lead.This indicates that their lead-induced learning deficits had beenreversed. I am an expert from eas-securitytags.com, while we provides the quality product, such as RF Security Systems , EAS Soft Label Manufacturer, EAS Security Tags,and more.
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