The Fight or Flight Response.
The stress is reaction of body.
There are three stages of stress: alarm, resistance, and exhaustion. The alarm stage is the body's initial reaction to stress, followed by the resistance stage where the body tries to adapt and cope with stress. If stress continues without relief, it can lead to the exhaustion stage, where the body's resources are depleted.
Stress hormones can focus concentration and speed reaction time.
The principle stress is a maximum tension stress in a body where shear stress is zero and it acts on the principle plane. If a body is under both tension and shear then the principle stress is higher than the initial tension stress. You can calculate this and find the principle plane angle using Mohr Circle analysis or equations.
The alarm stage of the general adaptation syndrome (GAS) model is called the "alarm reaction." It is the initial response to a stressor, where the body recognizes a threat and activates the fight-or-flight response. This stage triggers the release of stress hormones, such as adrenaline and cortisol, leading to physiological changes like increased heart rate and heightened alertness. This reaction prepares the body to confront or escape the stressor.
anxiety, sleeplessness, and loss of appetite
Hans Selye's adaptation theory, known as the General Adaptation Syndrome (GAS), consists of three stages: the alarm reaction, the resistance stage, and the exhaustion stage. The alarm reaction is the initial response to stress, where the body prepares to fight or flee. In the resistance stage, the body tries to adapt to the ongoing stressor, while in the exhaustion stage, prolonged stress leads to a depletion of resources and can result in negative health consequences.
During this phase, if the stress continues, the body adapts to the stressors it is exposed to. Changes at many levels take place in order to reduce the effect of the stressor
the body"s mental reaction to stressors of battle
Glucocorticoids from the zona fasiculata are essential for the body to function as they are involved in energy metabolism and assist in resisting stress.
the body's mental reaction to stressors of battle
An initial reaction to something alarming would be the alarm stage. This is when the adrenaline courses through the body. The resistance stage comes after the alarm stage, and this is when the body repairs any damage to the system that had been caused by the alarm stage.