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Health – Articles, Analysis, Opinion

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The new SARS-CoV-2 variant’s increased transmissibility is believed to come from a change in the spike protein, visible here in yellow under an electron microscope. National Institute of Allergies and Infectious Diseases

How to stay safe with a fast-spreading new coronavirus variant on the loose

The new SARS-CoV-2 variant is already spreading in the US and could be dominant by March, the CDC warns. Here’s what that means for the masks you choose and how you practice social distancing.
A pulse oximeter measures a person’s blood oxygen saturation level and heart rate. Grace Cary via Getty Images

More health inequality: Black people are 3 times more likely to experience pulse oximeter errors

Low oxygen levels can be a sign that a patient is in danger. A device that measures oxygen levels has been shown to miss low oxygen levels in Black people much more often than in white people.
B117, the SARS CoV-2 variant that was first detected in the U.K., has been found to be 30%-80% more transmissible. Juan Gaertner/Science Photo Library via Getty Images

What you need to know about the new COVID-19 variants

A biologist who studies the evolution of diseases explains what’s different about the two new virus strains that have been found recently, and what that means for vaccine effectiveness.
If too many Americans refuse to take the COVID-19 vaccine, achieving population immunity will be difficult. Paul Hennessy/NurPhoto via Getty Images

Americans have unrealistic expectations for a COVID-19 vaccine

Two in five Americans say they don’t want a COVID-19 vaccine, which is a problem. Finding out what Americans do want from a vaccine might help.
Despite help from the government and charities, the number of food-insecure kids is rising. NurPhoto/Getty Images

18 million US children are at risk of hunger: How is the problem being addressed and what more can be done?

An estimated 1 in 4 US children have trouble getting enough to eat at least sometimes. We asked four scholars for their insights..
Air pollution exposure during mid to early life may be more important to developing Alzheimer’s disease than doctors realized. Cecilie Arcurs via Getty Images

Air pollution may contribute to Alzheimer’s and dementia risk – here’s what we’re learning from brain scans

The tiny air pollutants known as PM2.5, emitted by vehicles, factories and power plants, aren’t just a hazard for lungs. A study finds more brain shrinkage in older women exposed to pollution.
For both children and adults, practicing mindfulness can improve brain function and enhance the immune system. Wavebreakmedia via Getty Images

How kids can benefit from mindfulness training

Many adults have benefited from mindfulness in recent years. Could the practice also benefit children? A researcher looked at that and found promising results.