exposure

Lead Exposure May Have Lowered The IQ of Half of Americans Since 1940

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Childhood lead exposure in the United States is ubiquitous and much more concerning than previous estimates have suggested, according to a new study. When researchers analyzed leaded gas use from 1940 and combined it with data on blood-lead levels from the mid 1970s, they found more than 54 percent of Americans alive in 2015 had … Read more

World-First Experiment That Infected People With Coronavirus Shares Early Results

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Scientists deliberately infected young, healthy volunteers with SARS-CoV-2, the coronavirus that causes COVID-19 – and now, they’ve shared their first results from that experiment.      The new study, published Tuesday (Feb. 1) in Springer Nature’s preprint database, In Review, has not yet been peer-reviewed, but it could provide insight into how mild COVID-19 unfolds, from the moment … Read more

Fascinating Mouse Study Hints We May One Day Have mRNA Vaccine for Skin Cancer

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Being sun smart could one day include a vaccination not unlike those currently providing millions around the world with immunity against coronavirus. While most immunizations sensitize our immune system to an aggressive agent like a virus or even cancer cell, emerging mRNA vaccine technology could instead train our bodies into generating additional antioxidant proteins, boosting our ability … Read more

Air pollution: One in 12 child asthma cases linked to nitrogen dioxide exposure

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Researchers estimate that 1.85 million new childhood asthma cases in 2019 were linked with exposure to nitrogen dioxide, a toxic gas released by diesel vehicles Health 5 January 2022 By Adam Vaughan Heavy traffic on a street in New Delhi, India Raj K Raj/Hindustan Times/Getty Images About one in 12 new child asthma cases worldwide … Read more