Most people know that exercise protects against heart attack and stroke, but researchers have spent 30 years unraveling the biochemistry behind the idea. Researchers have now revealed new details of how athletic hearts push blood through arteries wi…
It has been thought that young fish, lacking well-developed hearing organs, could not perceive the sounds made by their larger, older relatives. Now, researchers have used a combined fish tank and sound-proof chamber to show for the first time that …
Magnetic resonance spectroscopy — which analyzes the biochemistry rather than the structure of tissues — may someday be able both to pinpoint the precise location of prostate cancer and to determine the tumor’s aggressiveness, information that cou…
Bone marrow is a leading source of adult stem cells, which are increasingly used for research and therapeutic interventions, but extracting the cells is an arduous and often painful process. Now, researchers have found evidence that fat tissue, know…
Researchers have determined that patients with nonalcoholic fatty liver disease have a higher overall mortality rate compared with the general population.
Putting function before form, members of the Perissodinus genus of fish have developed a hugely lopsided jaw that provides a distinct feeding advantage. Researchers describe how these scale-eating fish, called cichlids, develop mouths directed eithe…
A growing number of archeological studies suggest the Amazon basin housed complex societies centuries before the arrival of Europeans.
Scientists are helping to find answers to one of the most difficult problems facing the world today: generating energy without accelerating climate change or harming food production. Researchers are investigating biofuels generated from wastes. Thes…
Researchers have identified a new disease mechanism and therapeutic approach for a type of advanced kidney disease that is a common cause of complications in patients with lupus.
To what extent does what’s happening in the stratosphere, tens of kilometers above Earth, influence the weather in the troposphere, the layer of atmosphere that touches Earth? Researchers performed a series of forecast experiments using a general ci…