News
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Uncertainty fires up some neurons
In monkeys, a small set of brain cells that transmit the chemical messenger dopamine to various neural destinations works as an uncertainty meter.
By Bruce Bower -
EarthWhen do EMFs disturb the heart?
Whether electromagnetic fields can blunt the healthy variability in heart rate may depend on an exposed individual being aroused or stressed during exposure.
By Janet Raloff -
EarthMethylmercury’s toxic toll
More than 60,000 children are born each year with neurodevelopmental impairments due to their prenatal exposure to methylmercury.
By Janet Raloff -
EarthChina: A mercury megapolluter
China's heavy reliance on coal burning makes it a world leader in mercury air pollution.