Brain
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BrainExplainer: Sometimes the body mixes up male and female
Certain medical conditions demonstrate how complicated biology can be. Being genetically male and female will not guarantee that your body won’t sometimes contain one or more features of both.
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Health & MedicineSugar makes mice sleepy
Sugar may amp up sleep-promoting cells in the brain, a new study in mice finds.
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BrainTo protect kids, get the lead out!
Lead poisons hundreds of thousands of children. In Chicago, experts show how the toxic metal hurts test performance in school.
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BrainSmell test may detect autism
A new study finds that kids with autism sniff foul scents for as long as pleasing ones. The finding could lead to a test to diagnose the disorder.
By Meghan Rosen -
MicrobesThe bugs within us
Hordes of bacteria live inside people and other animals. This ‘microbiome’ can affect the development of the blood-brain barrier, food choices — even mating.
By Roberta Kwok -
BrainStudying? Don’t answer that text!
Homework time? Put away the cell phone. Responding to texts gets in the way of learning and test-taking, teen researchers show.
By Sid Perkins -
BrainScientists Say: MRI
MRI is a technique used to diagnose diseases and to study the body. The machine can map internal structures, all the way down to tiny blood vessels.
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BrainHands-free but still distracted
When people aren’t distracted, they can see a traffic light change very quickly. But a teen scientist now shows that texting — even with a hands-free device — gets dangerously slow.
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BrainBack off, bullies!
Mental health is another reason to stop bullies. Victims of bullying are more likely to develop anxiety problems than are victims of abuse or neglect, a new study finds.
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BrainTrip to Mars could damage astronauts’ brains
Experiments in mice suggest the high-energy particles that would zap astronauts on a mission to Mars could leave the explorers with brain damage.
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BrainTwisters: Can warning people too early backfire?
If people think they have enough time to flee a tornado, they may try to drive away, information shows. This could leave them stuck in traffic — with no protection — when the storm does show up.
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Health & MedicineStress for success
Stress and anxiety can lead to serious mental and behavioral problems. Identifying stressors can help people cope with anxiety. Even better, viewing stress as a strength can tone down anxious feelings and boost productivity.