The U.S. Preventive Services Task Force says there is not enough evidence to determine whether testing people with no symptoms of celiac disease provides any benefit for those patients.
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State and federal policies now limit the use of lead in gasoline, paint and plumbing, but children can still ingest the metal through contaminated soil. The effects of even fairly small amounts can be long-lasting, the evidence suggests.
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There's overwhelming consensus that breast-feeding is the optimal way to feed an infant. But the topic of how breast-feeding may influence cognitive ability is controversial.
Former House Majority Leader Tom DeLay leaves Capitol Hill, in September 2013, after a Texas appeals court tossed out his criminal conviction, saying there was insufficient evidence for a jury in 2010 to have found him guilty of illegally funneling money to Republican candidates.
Dr. Cesar Barba (right), a family physician at the UMMA Community Clinic's Fremont Wellness Center in South Los Angeles, treats Lourdes Flores Valdez, 42, for her diabetes and other health issues.