Older adults with low levels of vitamin D appear more likely to experience declines in thinking, learning and memory over a six-year period, according...
A tiny clay fragment（碎片） – dating from the 14th century B.C.E. – that was found in excavations（挖掘，发掘） outside Jerusalem's Old City wal...
Social competence（社交能力） and behavior problems that are evident at kindergarten and first grade are known to be strong predictors of a child's acad...
In 20 years, approximately 72 million older adults will reside in（居住，存在于） the United States, almost double the current number, according to the U.S. A...
Scientists have discovered a compound that restores the capacity to form new memories in aging rats, likely by improving the survival of newborn neuro...
Happier youths are also healthier youths, according to Emily Shaffer-Hudkins and her team, from the University of South Florida in the US. Adolescents...
A new system for the controlled delivery of pharmaceutical（制药的） drugs has been developed by a team of University of Rhode Island chemical engineers us...
Having discovered a dramatic increase of an easy-to-detect enzyme（酶） in the red blood cells of people with diabetes and prediabetes（前驱糖尿病） , Johns Hop...
For decades, scientists have speculated（推测，思索） about why some fireflies（萤火虫） exhibit synchronous（同步的，同时的） flashing, in which large groups produce rhyt...
When Nicholas Longrich discovered a new dinosaur species with a heart-shaped frill（装饰） on its head, he wanted to come up with a name just as flamboyan...