Introduction Psychological stress is a common phenomenon in modern human life, resulting from the accelerated pace of life and increasing social, educational, and economic demands. These stresses directly and indirectly affect both physical and mental health, making it essential to study and understand their impacts to maintain the health of individuals and society. Concept of Psychological Stress Psychological stress is a state of tension and emotional strain resulting from exposure to situations or demands that exceed an individual’s ability to cope or confront. These stresses may be temporary or chronic, positive (motivating achievement), or negative (leading to health and psychological disorders). Causes of Psychological Stress The causes of psychological stress are varied, including: • Academic and work-related pressures • Family and social problems • Economic pressures • Sudden life changes • Lack of social support Effects of Psychological Stress on Physical Health Continuous psychological stress affects various body systems and may lead to: • Digestive system disorders • Headaches and muscle pain • High blood pressure • Weakening of the immune system • Sleep disturbances and general fatigue Effects of Psychological Stress on Mental Health The effects of psychological stress are not limited to physical health but also extend to mental health, including: • Persistent anxiety and tension • Mood swings • Weak concentration and attention • Feeling of psychological exhaustion • Decreased motivation and life satisfaction Conclusion Psychological stress represents a health and mental challenge that requires both societal and individual awareness of its causes and effects. Proper management of psychological stress contributes to enhancing physical and mental health, improving individual quality of life, and increasing the ability to adapt and achieve. Al-Mustaqbal University the First in Iraq