Ancient DNA reveals a farming shift that pushed a society to the brink
A groundbreaking study utilizing ancient DNA has unveiled a significant shift in farming practices within Argentina's Uspallata Valley. The research indicates that agriculture was initially adopted by indigenous hunter-gatherer communities, rather than being introduced by external groups. Centuries later, a new wave of highly stressed, maize-reliant farmers migrated into the region, battling severe challenges such as climate change, widespread disease, and a dwindling population. Despite these immense pressures that pushed society to the brink, the study found no evidence of conflict or violence. Instead, communities relied on strong, intergenerational kinship networks, highlighting cooperation as the primary strategy for navigating profound societal crises and ensuring survival.
Fresh materials — Science news
Vitamin C Linked to Improved Survival in Pre-Cancerous Blood Disorders
Vitamin C supports immune function, wound healing, and cellular protection. Individuals with pre-cancerous blood disorders and blood cancers often have low vitamin C levels. Researchers explored whether correcting this deficiency could improve their health and treatment outcomes. Finding
Solar Storm Delayed Train: Historical Space Weather Record Corrected
A train delay from nearly 180 years ago has led scientists to correct a misunderstanding about the history of space weather. An international research team has solved a 178-year-old mystery concerning one of the earliest documented instances of solar activity affecting electrical techn
Hurricane Forecast Maps Improve Clarity, But Understanding Remains a Challenge
Updated hurricane forecast maps now make it easier to pinpoint storm-threatened zones. However, new research highlights a significant issue: even when people can identify areas under hurricane watches, they might not perceive an increased risk or feel motivated to take protective actions.
Scientists Reverse 60 Years of Cellular Aging in Human Cells
German researchers have found a method to significantly reverse the molecular age of human cells. They transformed blood cells from an 80-year-old into stem cells that appeared less than 20 years old at a molecular level. At the University Hospital of Bonn and the University o
Ultra-Processed Foods and Colorectal Cancer Risk: A Massive Study
A major study involving over 460,000 Americans challenges the view that all ultra-processed foods (UPFs) equally increase colorectal cancer (CRC) risk. Researchers found no overall link between higher UPF consumption and increased CRC rates. However, the study did identify a nuanced re
Excess RNA Starves Cells of Energy, New Study Reveals
Scientists have discovered that a high concentration of RNA within cells can harm the structures responsible for energy production, potentially impairing cellular operations. Research from the Texas A&M College of Veterinary Medicine and Biomedical Sciences (VMBS)