News
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Health & MedicineBreathe easy
When it comes to heart function, the concentration of pollution in the air may matter less than its chemical makeup.
By Tia Ghose -
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PhysicsLeft in the cold
An optical trap lets atoms in but not out, and it can be used to study matter at ultracold temperatures.
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ChemistryCatching your breath
Scientists are investigating how to use the human breath to diagnose diseases and environmental ills.
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HumansWorth the cooties
Boys who attend preschool classes with a majority of girls do better developmentally than other boys.