Why can't some teens resist taking risks?
Mood disorders are linked to disturbances of circadian rhythms.
DNA analysis reveals a new—and deadly—strain of flu.
Scientists decode large parts of the Neanderthal genome.
Genetically speaking, how close are we to Neanderthals?
A bacterial DNA sequencing project uncovers the diversity of microbes in humans.
Skin cells become brain cells in a petri dish.
The human genome can tell us the number of people that lived long ago.
A powerful imaging technique may see early nascent brain damage from Lyme disease.
Scientists are finding biological influences on obesity.
People with Williams Syndrome are fearlessly, impulsively social. Brain scans are revealing why.
Ardipithecus ramidus lived long before Lucy—and moved in quite a different way.
Huge genetic studies are making sense of human ancestry across the globe.
Researchers manipulated mouse DNA to discover a new genetic link to human hearing loss.
An indigenous community in the Bolivian Amazon is shedding light on the risk factors for heart disease.
Biologists have traced the deadliest form of malaria to its source.
3-D brain model provides clues about primate brain evolution.
A key group of extinct primates takes its place on our ancestral tree.
A new study shows brain changes underlying social cognition in children.
A 35,000-year-old bone flute reveals the musical nature of the first Europeans.
Tiny hominids could walk but not run.
Long thought irreplaceable, human heart cells actually can regrow.
A genetic study shows the surprising influence of the pineal gland on our 24-hour body cycles.
Scientists create stem cells that are safer to use in research.
A new date for an old fossil hints that Homo erectus was resilient in colder climates.
Biologists have learned that childhood abuse can leave a lasting mark on brain function.
Gene copying mistakes may have prodded the evolution of gorillas, chimps, and humans.
The germs that live inside us have evolved with us -- and tell a story of early human migrations.
Can you both learn something new and recall something old at the same moment?
A fresh look at the human fossils on Flores Island hints at their evolutionary history.
Biologists learn why some HIV-positive people stay healthy for decades.
Stone Age "family values" reached to the afterlife.
Genomics are getting personal.
Ancient bones found in caves are yielding genetic clues about Ice Age life.
Paleontologists are reconstructing the hearing of early humans for clues to speech ability.
A new study of Bisphenol A finds an association with heart disease and diabetes.
The genes of Europeans can reveal their local roots.
Scientists have generated the first stem cell line that carries a specific disease.
Neuroscientists have produced the first detailed "wiring diagram" of the human cerebral cortex.
Facial expressions may do more than show feelings. They may have evolved as survival instincts.
How does our brain change when we spontaneously create music?
A new biological rhythm reflects an organism's pace of life.
Urban and rural dwellers express genes differently.
Tracing asthma in Hutterite families has implications for all.
Scientists have reanalyzed a 6-million-year-old leg bone.
New studies maintain that the tiny hominid is a distinct species.
The most complete malaria risk map in 40 years will help focus treatment.
The life-threatening pathogen MRSA is evolving in ways that may affect its virulence.
A new population study considers human longevity.