BETHESDA, Md., May 14 (UPI) -- A team of U.S. medical scientists says it has, in a mouse study, identified two proteins that are apparently essential for ovulation to occur.

BETHESDA, Md., Nov. 20 (UPI) -- It's possible to teach preschoolers the pre-reading skills they need for later school success, while fostering socials skills, U.S. researchers said.

ROCKVILLE, Md., Feb. 29 (UPI) -- Tobacco use and secondhand smoke exposure during pregnancy may threaten the health of women and children, a study in Asia, Africa and Latin American found.

WASHINGTON, Oct. 5 (UPI) -- The National Children’s Study announced Thursday that 22 new study centers had received contracts for its survey of 100,000 U.S. children.

WASHINGTON, July 14 (UPI) -- A Washington-based health organization says medical care costs $26 billion a year for the increasing number of premature and low birth weight infants.

PITTSBURGH, July 12 (UPI) -- U.S. researchers say they believe they've identified why people suffering from autism think in pictures.

WASHINGTON, Sept. 19 (UPI) -- National Institutes of Health researchers in Washington have found the sequence by which malaria parasites disperse from the red blood cells it infects.

WASHINGTON, Sept. 15 (UPI) -- Compounds called defensins -- known to stop viruses from entering cells -- appear to do so by preventing the virus from merging to cells' outer membrane.

WASHINGTON, Aug. 30 (UPI) -- A federal study says U.S. teenage drivers, both males and females, are more likely to tailgate and speed when a male teenager is a passenger in the front seat.