Humans
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Science & Society
Moral judgments about an activity’s COVID-19 risk can lead people astray
People use values and beliefs as a shortcut to determine how risky an activity is during the pandemic. Those biases can lead people astray.
By Sujata Gupta -
Chemistry
Many cosmetics contain hidden, potentially dangerous ‘forever chemicals’
Scientists found signs of long-lasting PFAS compounds in about half of tested makeup products, especially waterproof mascaras and lipsticks.
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Health & Medicine
Here’s what you should know about COVID-19 vaccine booster shots
No one knows if coronavirus booster shots will be necessary. But researchers are working on figuring that out.
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Archaeology
New clues suggest people reached the Americas around 30,000 years ago
Ancient rabbit bones from a Mexican rock-shelter point to humans arriving on the continent as much as 10,000 years earlier than often assumed.
By Bruce Bower -
Health & Medicine
Solving mysteries of reproduction helped make parenthood possible for millions
Over the last 100 years, research has shed light on where we come from — how a single fertilized egg manages to develop into an organism that is unique, complex and most decidedly human — and technology has helped spur the process.
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Health & Medicine
FDA approved a new Alzheimer’s drug despite controversy over whether it works
A new Alzheimer's treatment slows progression of the disease, the drug’s developers say. But some researchers question its effectiveness.
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Health & Medicine
Food that boosts gut microbes could be a new way to help malnourished kids
Malnourished children in Bangladesh fed a food aimed at restoring gut health grew more than those who got a traditional high-calorie supplement.
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Health & Medicine
After 40 years of AIDS, here’s why we still don’t have an HIV vaccine
The unique life cycle of HIV has posed major challenges for scientists in the search for an effective vaccine.
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Health & Medicine
After vaccinating 95 percent of adults, a Brazilian city is returning to normal
An experiment to vaccinate all adults against COVID-19 in Serrana shows that widespread immunization drastically cuts hospitalizations and deaths.
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Health & Medicine
A repurposed TB vaccine shows early promise against diseases like diabetes and MS
The potentially helpful effect of the BCG vaccine on type 1 diabetes and other autoimmune diseases is beginning to make sense.
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Health & Medicine
Vaccinating people in developing countries costs far less than doing nothing
Shots for half the adults in those countries will cost $9.3 billion, the Rockefeller Foundation reports. Doing nothing could cost trillions.
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Health & Medicine
Here’s what we know about the risks of serious side effects from COVID-19 vaccines
Allergic reactions, blood clots and possibly heart problems are rare and their risks don’t outweigh the benefits of getting vaccinated, experts say.