Science

According to a new study, published in the journal Scientific Reports, older adults with irregular sleep patterns weigh more, have higher blood sugar and pressure, and a higher risk of cardiovascular disease; irregular sleepers also have increased stress and depression levels, psychiatric factors integrally tied to cardiometabolic disease. Older adults …

Human skeletal stem cells capable of self-renewal and multilineage differentiation to bone, cartilage, and stroma have been isolated by Dr. Michael Longaker of the Stanford University School of Medicine and colleagues. This is the first time that skeletal stem cells, which had been observed in mice, have been identified in …

According to a comprehensive, systematic review of previous studies, a diet of vegetables, fruits, nuts, plant-based food and fish — typical of a Mediterranean diet — could help lower risk of depression. Adhering to a healthy diet, in particular a traditional Mediterranean diet, or avoiding a pro-inflammatory diet appears to …

Jered Chinnock, 29, injured his spinal cord at the thoracic vertebrae in the middle of his back in a snowmobile accident in 2013. He was diagnosed with a complete loss of function below the spinal cord injury, meaning he could not move or feel anything below the middle of his …

An international team of researchers led by RMIT University has developed paper-based UV sensors that could help people manage vitamin absorption and avoid sun damage. UV active ink can be printed on paper making sensors cheap and easy to produce. Image credit: RMIT University. While humans do need some sun …

According to a systematic meta-analysis published in The Lancet Diabetes Endocrinology, vitamin D supplementation does not prevent fractures or falls, or have clinically meaningful effects on bone mineral density, whether at high or low dose. Vitamin D supplementation does not prevent fractures or falls, or improve bone mineral density. “The …

Huntington’s disease is a genetic, progressive disorder that causes uncontrolled movements, emotional problems, and loss of thinking ability. The disease is caused by mutated protein, called huntingtin, with symptoms appearing in adulthood and worsening over time. New research, reported in the journal Science Translational Medicine, suggests that lowering huntingtin levels …

A new study, led by researchers at the Ben-Gurion University of the Negev, Israel, demonstrates the toxicity effect of artificial sweeteners on Escherichia coli (E. coli), a sensing model representative of the gut bacteria. This illustration depicts a 3D computer-generated image of a group of Escherichia coli. Image credit: James …

According to a study published in the journal Science, the earliest New World dogs were not domesticated from North American wolves; instead, they form a lineage that likely originated in Eastern Siberia and dispersed into the Americas alongside people. ‘Pre-contact’ American dogs, which arrived alongside people over 10,000 years ago …

Modern-day Southeast Asian populations are the result of mixing among four ancient populations, including multiple waves of genetic material from more northern East Asian populations, according to researchers who sequenced and analyzed 26 ancient genomes from Southeast Asia and Japan. McColl et al sequenced 26 ancient genomes from Southeast Asia …