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  1. Stress - World Health Organization (WHO)

    Feb 21, 2023 · Stress can be defined as a state of worry or mental tension caused by a difficult situation. Stress is a natural human response that prompts us to address challenges and …

  2. Stress: What It Is, Symptoms, Management & Prevention

    May 15, 2024 · Stress Stress is the natural reaction your body has when changes or challenges occur. It can result in many different physical, emotional and behavioral responses. Everyone …

  3. What Is Stress? Symptoms, Causes, Impact, Treatment, Coping

    Nov 9, 2025 · Key Takeaways Stress is your body's response to changes that require attention or action. Chronic stress can negatively impact your health and lead to mental health problems. …

  4. Stress - American Psychological Association (APA)

    Stress is a normal reaction to everyday pressures, but can become unhealthy when it upsets your day-to-day functioning. Stress involves changes affecting nearly every system of the body, …

  5. What is Stress? - The American Institute of Stress

    While people often define stress differently, common definitions include “physical, mental, or emotional strain or tension” and “a condition or feeling experienced when a person perceives …

  6. Stress | Description, Causes, & Effects | Britannica

    Nov 17, 2025 · stress, in psychology and biology, any environmental or physical pressure that elicits a response from an organism. In most cases, stress promotes survival because it forces …

  7. Stress - Psychology Today

    Stress generally refers to two things: the psychological perception of pressure, on the one hand, and the body's response to it, on the other, which involves multiple systems, from metabolism …

  8. What is Stress? | HealthHub - cmhl.ascension.org

    Stress is a normal psychological and physical reaction to the demands of life. There are positive and negative kinds of stress that can both help and hurt our mind and body. Stress is also …

  9. STRESS Definition & Meaning - Merriam-Webster

    The stress is on the first syllable when "protest" is a noun. These stress patterns are defined in groupings, called feet, of two or three syllables. Bennet Bergman. In a measure of 4/4 meter, …

  10. Stress - Centers for Disease Control and Prevention

    Stress can cause feelings of unease, anxiety, frustration, nervousness, fearfulness, or helplessness. When stressed, you may notice changes in your sleep, appetite, or energy level. …