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Parsing which foods are healthy and which are less so isn't always straightforward – a new rating system aims to demystify the process

  • Written by Dariush Mozaffarian, Dean of Friedman School of Nutrition Science and Policy, Tufts University
imageThe new system generally gives higher scores to fruits, vegetables and minimally processed foods.RapidEye/iStock via Getty Images Plus

Many people aim to start the year off with healthier food choices. But how do you choose between seemingly similar foods, snacks or beverages? How does a bagel with cream cheese compare to toast topped with avocado,...

Read more: Parsing which foods are healthy and which are less so isn't always straightforward – a new rating...

Horror and anguish are playing out on repeat following the latest mass shooting – and the mental health scars extend far beyond those directly affected

  • Written by Arash Javanbakht, Associate Professor of Psychiatry, Wayne State University
imageThe mass shooting at a dance studio in Monterey Park, Calif., is the latest in an endless string of gun violence tragedies. AP Photo/Jae C. Hong

Yet another community is stricken with grief in the wake of the horrific shooting at Monterey Park, California, on Jan. 21, 2023, that left 10 people dead and 10 more wounded. Families and friends of the...

Read more: Horror and anguish are playing out on repeat following the latest mass shooting – and the mental...

Cheap sewer pipe repairs can push toxic fumes into homes and schools – here's how to lower the risk

  • Written by Andrew J. Whelton, Professor of Civil, Environmental & Ecological Engineering, Director of the Healthy Plumbing Consortium and Center for Plumbing Safety, Purdue University
imageWith many CIPP repairs, this isn't just steam.Andrew Whelton/Purdue University

Across the U.S., children and adults are increasingly exposed to harmful chemicals from a source few people are even aware of.

It begins on a street outside a home or school, where a worker in a manhole is repairing a sewer pipe. The contractor inserts a resin-soaked...

Read more: Cheap sewer pipe repairs can push toxic fumes into homes and schools – here's how to lower the risk

As US-EU trade tensions rise, conflicting carbon tariffs could undermine climate efforts

  • Written by Noah Kaufman, Research Scholar in Climate Economics, Columbia University
imageThe U.S. and EU are headed in different directions with tariffs, including on steel. David McNew/Getty Images

Rising trade tensions between the U.S. and the European Union, two of the most important global leaders when it comes to climate policy, could undermine key climate initiatives of both governments and make it harder for the world to put the...

Read more: As US-EU trade tensions rise, conflicting carbon tariffs could undermine climate efforts

How has the inside of the Earth stayed as hot as the Sun's surface for billions of years?

  • Written by Shichun Huang, Associate Professor of Earth and Planetary Sciences, University of Tennessee
imageThe slice you see cut out of the Earth reveals its core, depicted here in bright yellow.fhm/E+ via Getty Imagesimage

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to curiouskidsus@theconversation.com.

How does the inside of the Earth stay boiling hot for billions of years? Henry,...

Read more: How has the inside of the Earth stayed as hot as the Sun's surface for billions of years?

Cochlear implants can bring the experience of sound to those with hearing loss, but results may vary – here's why

  • Written by Niyazi Arslan, Ph.D. Candidate in Speech and Hearing Science, Arizona State University
imageA patient's age upon receiving a cochlear implant can influence the technology's effectiveness.Cavan Images/Cavan via Getty Images

Cochlear implants are among the most successful neural prostheses on the market. These artificial ears have allowed nearly 1 million people globally with severe to profound hearing loss to either regain access to the...

Read more: Cochlear implants can bring the experience of sound to those with hearing loss, but results may...

Online racial harassment leads to lower academic confidence for Black and Hispanic students

  • Written by Alvin Thomas, Assistant Professor, Phyllis Northway Faculty Fellow, University of Wisconsin-Madison
imageStudents of color become less confident in their academic abilities when they encounter racially demeaning content online.ljubaphoto / Getty Images

The Research Brief is a short take about interesting academic work.

The big idea

Online racial discrimination or harassment has a negative effect on the academic and emotional well-being of students of...

Read more: Online racial harassment leads to lower academic confidence for Black and Hispanic students

Brazil, US show that secure elections require agreement – not just cybersecurity and clear ballot records

  • Written by Herbert Lin, Senior Research Scholar for Cyber Policy and Security, Center for International Security and Cooperation, Stanford University
imageProtesters who support Brazil's former President Jair Bolsonaro storm the National Congress building in Brasilia, Brazil, on Jan. 8, 2023.AP Photo/Eraldo Peres

There are a number of ways to run a legitimate election. But the U.S. has learned in recent years, and Brazil learned in recent weeks, that it’s not always simple.

There are technical...

Read more: Brazil, US show that secure elections require agreement – not just cybersecurity and clear ballot...

Jewish doctors in the Warsaw Ghetto secretly documented the effects of Nazi-imposed starvation, and the knowledge is helping researchers today – podcast

  • Written by Daniel Merino, Associate Science Editor & Co-Host of The Conversation Weekly Podcast, The Conversation
imageStarvation was omnipresent in the Warsaw Ghetto for both young and old.Blid Bundesarchiv/Wikimedia Commons, CC BY-SA

During the years of suffering and tragedy that defined the Warsaw Ghetto in the midst of World War II, a team of Jewish doctors secretly documented the effects of starvation on the human body when the Nazis severely limited the...

Read more: Jewish doctors in the Warsaw Ghetto secretly documented the effects of Nazi-imposed starvation,...

Peru protests: What to know about Indigenous-led movement shaking the crisis-hit country

  • Written by Eduardo Gamarra, Professor of Politics and International Relations, Florida International University
imageA movement on the march.Carlos Garcia Granthon/Fotoholica Press/LightRocket via Getty Images

Peru is in the midst of a political and civil crisis. Weeks of protest have culminated in thousands descending on the capital amid violent clashes and running battles with police.

Triggered by the recent removal from power of former leader Pedro Castillo,...

Read more: Peru protests: What to know about Indigenous-led movement shaking the crisis-hit country

More Articles ...

  1. South Carolina's execution by firing squad: The last reenactment of the Civil War?
  2. House Speaker McCarthy's powers are still strong – but he'll be fighting against new rules that could prevent anything from getting done
  3. Jacinda Ardern's resignation shows that women still face an uphill battle in politics – an expert on female leaders answers 5 key questions
  4. Democracies don't just bounce back after dictatorships – Argentina's Oscar contender shows what justice afterward looks like
  5. All politicians must lie from time to time, so why is there so much outrage about George Santos? A political philosopher explains
  6. How do you vaccinate a honeybee? 6 questions answered about a new tool for protecting pollinators
  7. Democracies don't just bounce back after dictatorships – Argentina's Oscar nominee shows what justice afterward looks like
  8. 5 ways pressuring young athletes to perform well does them harm
  9. What is involuntary manslaughter? A law professor explains the charge facing Alec Baldwin for 'Rust' shooting death
  10. Inflation hasn't increased US food insecurity overall, according to our new tracker
  11. Cold weather brings itchy, irritated, dry and scaly skin – here's how to treat eczema and other skin conditions and when to see a doctor
  12. The weaponization of the federal government has a long history
  13. How ChatGPT robs students of motivation to write and think for themselves
  14. Installing solar-powered refrigerators in developing countries is an effective way to reduce hunger and slow climate change
  15. Prince Harry's portrayal of war in 'Spare' is making headlines – but combat decision-making is more complex than his words suggest
  16. How Edgar Allan Poe became the darling of the maligned and misunderstood
  17. Lo que la Biblia realmente dice sobre el aborto puede sorprenderte
  18. Climate change trauma has real impacts on cognition and the brain, wildfire survivors study shows
  19. Why China’s shrinking population is a big deal – counting the social, economic and political costs of an aging, smaller society
  20. A librarian recommends 5 fun fiction books for kids and teens featuring disabled characters
  21. Flood forecasts in real-time with block-by-block data could save lives – a new machine learning method makes it possible
  22. Why gas stoves matter to the climate – and the gas industry: Keeping them means homes will use gas for heating too
  23. Fictional newsman Ted Baxter was more invested in fame than in good journalism – but unlike today's pundits, he didn't corrupt the news
  24. Florida Gov. DeSantis leads the GOP's national charge against public education that includes lessons on race and sexual orientation
  25. Kicking off the new year by cleansing your body with a detox diet? A dietitian unpacks the science behind these fads
  26. Vaccination to prevent dementia? New research suggests one way viral infections can accelerate neurodegeneration
  27. Dozens of US schools, universities move to ban TikTok
  28. Why aren't there any legal protections for the children of influencers?
  29. US military spending in Ukraine reached nearly $50 billion in 2022 – but no amount of money alone is enough to end the war
  30. This lunar year will be the Year of the Rabbit or the Year of the Cat, depending on where you live
  31. 50 years after Roe, many ethics questions shape the abortion debate: 4 essential reads
  32. Sex, drugs and alcohol are the top reasons that Texas teachers get in trouble, but overall, such cases are rare
  33. Parents in the US had alarmingly high rates of anxiety and depression during the COVID-19 pandemic – and that has a direct effect on kids
  34. Moderna's experimental cancer vaccine treats but doesn't prevent melanoma – a biochemist explains how it works
  35. New Israeli power broker seeks to rewrite history to justify violence against Palestinians
  36. Allegations that the charity George Santos claims to have run was fake highlight how scams divert money from worthy causes
  37. Deep seabed mining plans pit renewable energy demand against ocean life in a largely unexplored frontier
  38. Stopping the cancer cells that thrive on chemotherapy – research into how pancreatic tumors adapt to stress could lead to a new treatment approach
  39. 'The most dangerous Negro': 3 essential reads on the FBI's assessment of MLK's radical views and allies
  40. Voters have few options to remove George Santos from Congress – aside from waiting until the next election
  41. Special counsels, like those examining Biden's and Trump's handling of classified documents, are intended to be independent – but they aren't entirely
  42. Marriage provides health benefits – and here's why
  43. What the FDA's accelerated approval of a new Alzheimer's drug could mean for those with the disease – 5 questions answered about lecanemab
  44. What does ESG mean? Two business scholars explain what environmental, social and governance standards and principles are
  45. Native eastern fence lizards changed their bodies and behavior in response to invasive red imported fire ants
  46. Bringing manufacturing back to the US requires political will, but success hinges on training American workers
  47. Sitting all day is terrible for your health – now, a new study finds a relatively easy way to counteract it
  48. Inflation report is a mixed bag – an economist explains why some items are rising faster than others
  49. How the distortion of Martin Luther King Jr.'s words enables more, not less, racial division within American society
  50. What is the FAA's NOTAM? An aviation expert explains how the critical safety system works