Toggle light / dark theme

Get the latest international news and world events from around the world.

Log in for authorized contributors

DNA Breakthrough Solves Decade-Old Mystery of the Beachy Head Woman

New research suggests the mysterious Roman-era “Beachy Head Woman” was likely from Britain, not the Mediterranean or sub-Saharan Africa. Advances in DNA sequencing are helping researchers resolve a mystery that has surrounded the Beachy Head Woman for more than ten years. The remains of a youn

Depression’s impact on fairness perceptions depends on socioeconomic status

Depression may make unfair offers seem fairer, but only if you perceive yourself as having high social status. New research explores how socioeconomic status moderates the cognitive distortions associated with depression in financial decision-making.

Elite army training reveals genetic markers for resilience

A new analysis of soldiers attempting to join the U.S. Army Special Forces suggests that specific genetic variations play a role in how individuals handle extreme physical and mental pressure. The research identified distinct links between a soldier’s DNA and their cognitive performance, psychological resilience, and physiological stress response during a grueling selection course. These findings were published recently in the academic journal Physiology & Behavior.

To become a member of the elite Army Special Forces, a soldier must first pass the Special Forces Assessment and Selection course. This training program is widely recognized as one of the most difficult military evaluations in the world. Candidates must endure nearly three weeks of intense physical exertion. They face sleep deprivation and complex problem-solving exercises. The attrition rate is notoriously high. Approximately 70 percent of the soldiers who attempt the course fail to complete it. This environment creates a unique laboratory for scientists to study human endurance.

Researchers have sought to understand why some individuals thrive in these punishing environments while others struggle. Resilience is generally defined as the ability to adapt positively to adversity, trauma, or threats. It involves a combination of psychological stability and physiological recovery. While physical training and mental preparation are essential, biological factors also play a substantial role. Genetics help determine how the brain regulates chemicals and how the body processes stress hormones.

/* */