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08 April 2010

Blood lead tied to later puberty

Boys with relatively elevated levels of lead in their blood may start puberty later than their peers with less lead exposure, a new study suggests.

 

Lead is a toxic metal that is present in the air, soil and water, though public health efforts in recent decades to reduce environmental levels -- by taking lead out of gasoline and paints, for example -- have cut lead exposure in the U.S. and other countries.

 
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