Stress is a fundamental biological response that allows the human organism to react to internal and external challenges. From an evolutionary perspective, stress played a crucial role in survival by activating rapid physiological adjustments that increased alertness, strength, and decision-making capacity. In controlled and short-term situations, this response remains beneficial and adaptive. However, the modern world has transformed stress into a persistent condition rather than a temporary survival mechanism. Continuous exposure to psychological pressure , emotional overload , environmental demands , and lifestyle imbalance can push the stress response beyond its adaptive limits. When stress becomes chronic, it initiates a cascade of biological effects that influence the nervous, immune, endocrine, and metabolic systems . Recent advances in molecular biology and neuroscience reveal that chronic stress does not merely affect hormones or brain chemistry; it reaches the dee...