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Health & MedicineAdditives may make youngsters hyper
Common food colorings and the preservative sodium benzoate have the potential to foster hyperactivity and inattentiveness in children, a new study finds.
By Janet Raloff -
ChemistryHydrogen makers
A new bioreactor produces hydrogen hundreds of times as fast as previous prototypes.
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ADHD kids show slower brain growth
A new brain-scan investigation indicates that attention-deficit hyperactivity disorder involves substantial delays in children's brain development.
By Bruce Bower -
AnthropologyAncient-ape remains discovered in Kenya
Newly unearthed fossils of a 9.8-million-year-old ape in eastern Africa come from a creature that may have evolved into a common ancestor of African apes and humans.