Humans

  1. Health & Medicine

    Common drug, dexamethasone, appears first to cut COVID-19 deaths

    A drug used for decades to treat inflammation now appears useful in saving the lives of severely ill COVID-19 patients — ones who have trouble breathing.

    By Tina Hesman Saey
  2. Health & Medicine

    Deadly heat: Expected by century’s end, it’s here already

    Instances of hot and humid conditions that threaten human lives are on the rise.

    By Jonathan Lambert
  3. Tech

    Waiting for a ‘smart’ toilet? It’s nearly here

    With every bathroom visit, we flush away important health data. Scientists hope to change that with 'smart toilets' that analyze your body’s output.

    By Stephanie Parker
  4. Science & Society

    Coronavirus lockdowns may have avoided 531 million infections

    Studies find big benefits from global coronavirus lockdowns. More than a half a billion of the potentially deadly infections appear to have been avoided.

    By Erin Garcia de Jesús
  5. Archaeology

    This cave hosted the oldest known human remains in Europe

    Bone fragments, tools and other finds in Bulgaria suggest that Homo sapiens moved rapidly into Eurasia as early as 46,000 years ago.

    By Bruce Bower
  6. Humans

    Let’s learn about bias

    People can be biased, even if they don’t think they are. Luckily, there are ways to fight our biases.

    By Bethany Brookshire
  7. Chemistry

    Let’s learn about hair

    Hair is made of long, strong protein chains. These chains have a lot of science in them.

    By Bethany Brookshire
  8. Health & Medicine

    Scientists Say: Protein

    Proteins are molecules made up of building blocks called amino acids. They play many key roles in the body’s cells and are essential for life.

    By Carolyn Wilke
  9. Humans

    Skeletons hint that ancient societies had women warriors

    Some women in North American hunter-gatherer societies and Mongolian herding groups may have been warriors.

    By Bruce Bower
  10. Tech

    Our gut microbes love a good workout

    Technology shows how microbes in the body respond to exercise. That helps scientists understand why those microbes keep athletes healthy.

    By Silke Schmidt
  11. Tech

    Sweat tech alerts athletes when to rehydrate — and with what

    Technology shows how the body responds to moderate and vigorous exercise. That helps athletes stay healthy — and helps scientists understand why.

    By Silke Schmidt
  12. Health & Medicine

    Loss of taste and smell may be top indicators of COVID-19

    Loss of a sense of taste and smell are not just possible symptoms of COVID-19. A study now argues they may be among the most predictive ones.

    By Tina Hesman Saey
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