Scientists are reporting a possible link between the use of sunscreen containing a certain ingredient that mimics the effects of the female sex hormone estrogen and an increased risk of being diagnosed with endometriosis, a painful condition in which uterine tissue grows outside the uterus.

Women who are obese before they become pregnant are at higher risk of having children with lower cognitive function - as measured by math and reading tests taken between ages 5 to 7 years - than are mothers with a healthy prepregnancy weight, new research suggests.

New research provides the strongest evidence to date that psychopathy is linked to specific structural abnormalities in the brain. The study is the first to confirm that psychopathy is a distinct neurodevelopmental subgroup of anti-social personality disorder.

Biodiversity hot spots -- the world's biologically richest and most threatened locations on Earth -- and high biodiversity wilderness areas -- biologically rich but less threatened -- are some of the most linguistically diverse regions on our planet, according to a team of conservationists.

Female mice from strains with lower IGF1 levels reach sexual maturity at a significantly later age. Combined with previous research showing that mouse strains with lower circulating levels of IGF1 live longer, the findings suggest a genetically regulated tradeoff: delayed reproduction but longer life.

New research finds a strong link between healthcare-associated infections and patient readmission after an initial hospital stay. The findings suggest that reducing such infections could help reduce readmissions, considered to be a major driver of unnecessary healthcare spending and increased patient morbidity and mortality.

Low testosterone levels have been linked to increased risk of diabetes in men. Male mice with low levels of testosterone have more resistance to insulin.

New discovery of a genetic mutation in congenital asplenia may lead to genetic prenatal screening in patients with the rare, but deadly, disorder.

Intense development of the two largest natural gas fields in the continental U.S. are driving away some wildlife from their traditional wintering grounds, new research shows.

Even low to moderate levels of exposure to the insecticide chlorpyrifos during pregnancy may lead to long-term, potentially irreversible changes in the brain structure of the child, according to a new brain imaging study. The changes in brain structure are consistent with cognitive deficits found in children exposed to this ...

One-third of U.S residents 45 and older with arthritis have anxiety or depression.

Early colonization of the gut by microbes in infants is critical for development of their intestinal tract and in immune development. A new study shows that differences in bacterial colonization of formula-fed and breast-fed babies leads to changes in the infant’s expression of genes involved in the immune system, and ...