Humans
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GeneticsBy not including everyone, genome science has blind spots
Little diversity in genetic databases makes precision medicine hard for many. One historian proposes a solution, but some scientists doubt it’ll work.
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BrainActive bodies build stronger brains
Aerobic fitness and physical activity correlate with widespread brain health in adolescents, according to a new imaging study in England.
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Health & MedicineSome young adults will volunteer to get COVID-19 for science
Researchers will soon give some healthy people the new coronavirus. Their young volunteers have agreed to get sick to speed coronavirus research.
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ArchaeologyUnusual mud shell covers an Egyptian mummy
In ancient Egypt, commoners may have been mummified and then encased in mud to repair damage to the body or to imitate royal techniques used with royals.
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AnimalsHow do you build a centaur?
A centaur has the torso of a human and the body of a horse. It may sound cool, but it wouldn’t work very well.
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Health & MedicineSpace travel may harm health by damaging cells’ powerhouses
Biochemical changes after going to space suggest that harm to cells’ energy-producing structures, called mitochondria, could explain astronauts’ health issues.
By Jack J. Lee -
AnimalsHarsh Ice Age winters may have helped turn wolves into dogs
In the Ice Age, Arctic hunters may have turned to some game for their fatty bones. Much of those animals’ meat might have been left to domesticate dogs.
By Bruce Bower -
Health & MedicineFive questions about COVID-19 vaccine trials in teens, answered
Scientists are now testing COVID-19 vaccines in teens. Why do teens need a separate trial? And what would happen? We’ve got answers.
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EnvironmentUnmasking the pandemic’s pollution problem
Discarding all the materials people use to protect themselves from COVID-19 has created a growing environmental problem.
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AnimalsLet’s learn about taste
Taste tells us what’s good to eat, but scientists are still learning about how it works.
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Health & MedicineScientists Say: Body Mass Index
This is someone’s weight in kilograms divided by the square of their height in meters. But it’s not a measure of someone’s health.
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HumansSome identical twins don’t have the exact same DNA
Identical twins may not be exactly identical. Mutations may arise early in development that account for tiny genetic differences between siblings.