Exercise is good for us in a lot of ways. It helps cut the pounds, increases cardiovascular health, adds muscle mass and can boost our mood. What it also does, though, is help keep our bones strong.
Studies have shown that regular exercise, especially involving weights, ups bone mass and maintains the health of our skeletal system. For us spring chickens, having strong bones might not sound all that critical, as our skeleton seems to get by just fine no matter what we do. But in the elder ...read more
Supernovae are the explosive end stages of massive stars. About 2.6 million years ago, one such supernova lit up Earth’s sky from about 150 light-years away. A few hundred years later, after the new star had long since faded from the sky, cosmic rays from the event finally reached Earth, slamming into our planet. Now, a group of researchers led by Adrian Melott at the University of Kansas believes this cosmic onslaught is linked to a mass extinction of ocean animals roaming Earth’s w ...read more
Monitoring the well-being of Antarctica’s delicate ecosystem just got a little bit easier thanks to a very unlikely source: penguin poop.
By analyzing over 40 years of Antarctic images gathered by seven satellites as part of the Landsat program, a NASA-funded team of researchers recently uncovered new details about the lives of Antarctica's Adélie penguins — a species that may help reveal past and future threats to one of the most unspoiled regions in the world ...read more
In Mexico, corn tortillas rule the kitchen. After all, maize began evolving there from a grass called teosinte some 9,000 years ago, eventually becoming a staple consumed around the world.
But that spread presents a puzzle. In 5,300-year-old remains of maize from Mexico, genes from the wild relative show that the plant was still only partly domesticated. Yet archaeological evidence shows that a fully domesticated variety was being grown in South America more than 1,000 years before that. ...read more
A medical procedure transferred a key component of Alzheimer’s disease from one person to another, finds a new study published today in the journal Nature. The discovery suggests the seeds of the devastating neurodegenerative disease are transmissible.
“It is a new way of thinking about the condition,” John Collinge, a neurologist at the University of College London in the United Kingdom, who led the new research, told reporters during a media briefing.
Odd Autopsy
Three years ...read more
Author Vishay SinghPosted on Categories Discover Magazine