ἀνθρώποισι πᾶσι μέτεστι γινώσκειν ἑωυτοὺς καὶ σωφρονεῖν.
Scientists have sequenced 15 ancient genomes spanning from Alaska to Patagonia and were able to track the movements of the first humans as they spread across the Americas at “astonishing” speed during the last Ice Age, and also how they interacted with each other in the following millennia. Continue reading “Ancient DNA analysis unlocks secrets of Ice Age tribes in the Americas Research”
Bacteria, often synonymous with infection and disease, may have an unfair reputation. Research indicates there are as many, if not more, bacterial cells in our bodies as human cells, meaning they play an important role in our physiology (1). In fact, a growing body of evidence shows that greater gut microbiota diversity (the number of different species and evenness of these species’ populations) is related to better health. Now, research published in Experimental Physiology has suggested that the efficiency with which we transport oxygen to our tissues (cardiorespiratory fitness) is a far greater predictor of gut microbiota diversity than either body fat percentage or general physical activity. Continue reading “Exercise might improve health by increasing gut bacterial diversity”
Texas A&M University researchers are developing a new kind of flame-retardant coating using renewable, nontoxic materials readily found in nature, which could provide even more effective fire protection for several widely used materials. Continue reading “Researchers develop fire-retardant coating featuring renewable materials”
In today’s science and business worlds, it’s increasingly common to hear that solving big problems requires a big team. But a new analysis of more than 65 million papers, patents and software projects found that smaller teams produce much more disruptive and innovative research. Continue reading “Bigger teams aren’t always better in science and tech”
Since the beginning of archaeology, researchers have combed the globe searching for evidence of the first domesticated crops. Painstakingly extracting charred bits of barley, wheat, millet and rice from the remains of ancient hearths and campfires, they’ve published studies contending that a particular region or country was among the first to bring some ancient grain into cultivation. Continue reading “Prehistoric food globalization spanned three millennia”
Regular aerobic exercise such as walking, cycling or climbing stairs may improve thinking skills not only in older people but in young people as well, according to a study published in the January 30, 2019, online issue of Neurology®, the medical journal of the American Academy of Neurology. The study also found that the positive effect of exercise on thinking skills may increase as people age. Continue reading “Exercise may improve thinking skills in people as young as 20”
