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2. Goodman relation - Wikipedia

   en.wikipedia.org/wiki/Goodman_relation

   Goodman relation. Within the branch of materials science known as material failure theory, the Goodman relation (also called a Goodman diagram, a Goodman-Haigh diagram, a Haigh diagram or a Haigh-Soderberg diagram) is an equation used to quantify the interaction of mean and alternating stresses on the fatigue life of a material. [1]

3. Fatigue (material) - Wikipedia

   en.wikipedia.org/wiki/Fatigue_(material)

   e. In materials science, fatigue is the initiation and propagation of cracks in a material due to cyclic loading. Once a fatigue crack has initiated, it grows a small amount with each loading cycle, typically producing striations on some parts of the fracture surface. The crack will continue to grow until it reaches a critical size, which ...

4. Fatigue - Wikipedia

   en.wikipedia.org/wiki/Fatigue

   Fatigue in a medical context is used to cover experiences of low energy that are not caused by normal life. [2] [3]A 2021 review proposed a definition for fatigue as a starting point for discussion: "A multi-dimensional phenomenon in which the biophysiological, cognitive, motivational and emotional state of the body is affected resulting in significant impairment of the individual's ability to ...

5. 30 Best Energy Supplements for Chronic Fatigue - AOL

   www.aol.com/entertainment/30-best-energy...

   Care/of Natural Energy Supplements for Fatigue. Pureboost Immune Clean Energy Drink Mix. Go Nutrients Adrenal Edge – Energy & Fatigue Supplement Liquid Drops. Rae Wellness Energy Capsules ...

6. Psychological stress - Wikipedia

   en.wikipedia.org/wiki/Psychological_stress

   Psychological stress. In psychology, stress is a feeling of emotional strain and pressure. [1] Stress is a form of psychological discomfort and mental discomfort. Small amounts of stress may be beneficial, as it can improve athletic performance, motivation and reaction to the environment. Excessive amounts of stress, however, can increase the ...

7. Stress (biology) - Wikipedia

   en.wikipedia.org/wiki/Stress_(biology)

   Stress (biology) Schematic overview of the classes of stresses in plants. Neurohormonal response to stress. Stress, whether physiological, biological or psychological, is an organism's response to a stressor such as an environmental condition. [1] When stressed by stimuli that alter an organism's environment, multiple systems respond across the ...