What was shell rock World War 1?

Shell shock was a term used during World War I to describe the psychological trauma experienced by soldiers due to the intense stress of combat, particularly from artillery bombardments. Symptoms included anxiety, nightmares, and emotional instability, which were often misunderstood at the time as mere cowardice. As the war progressed, recognition of shell shock increased, leading to a better understanding of psychological injuries in warfare. It laid the groundwork for future studies on combat-related mental health issues.