Antihistamines used as nausea remedy may carry risk of premature birth, low birth weight.

Team from UCLA's nursing school expands testing among LA's homeless.

Open windows in the classroom helps keep those seats filled.

Fewer neighborhood trees and heat-retaining hard surfaces add up to sweltering conditions for many people of color.

Ultrafine particles, found in a host of common products, are linked to lung inflammation, other damage.

Troubling levels of lead, other toxic metals found in lipstick, lip gloss.

Discovery may point to causes of the throbbing head pain that plagues millions.

Mental fogginess linked to chemotherapy may have roots in neurophysiological change.

Jay Keasling's discovery 12 years ago finally leads to production of partially synthetic version of artemisinin.

NIH grant helps scientist study disorder in African Americans.

Brain stimulation in rats hints at new therapy for human addicts.

Key events leading up to the Supreme Court decision.