Negligence occurs when someone fails to exercise reasonable care, causing harm to another. It's a crucial concept in tort law, requiring proof of duty, breach, causation, and damages. Understanding negligence is essential for navigating legal responsibilities in everyday situations. The duty of care is the cornerstone of negligence claims. It establishes the legal obligation to act with reasonable care to prevent foreseeable harm. This duty varies based on relationships and circumstances, forming the foundation for determining liability in negligence cases.