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Death anxiety is anxiety caused by thoughts of one's own death, and is also known as thanatophobia (fear of death). [1] This anxiety can significantly impact various aspects of a person's life. [2] Death anxiety is different from necrophobia, which refers to an irrational or disproportionate fear of dead bodies or of anything associated with ...
Psychological causes can include an anxiety disorder, depression, panic disorder, or bipolar disorder. A sense of impending doom often precedes or accompanies a panic attack . Physiological causes could include a pheochromocytoma , heart attack , blood transfusion , anaphylaxis , [ 1 ] or use of some psychoactive substances. [ 2 ]
Anxiety can be experienced with long, drawn-out daily symptoms that reduce quality of life, known as chronic (or generalized) anxiety, or it can be experienced in short spurts with sporadic, stressful panic attacks, known as acute anxiety. [23] Symptoms of anxiety can range in number, intensity, and frequency, depending on the person.
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These changes can lead to transgenerational stress inheritance. [1] Epigenetic modifications play a role in the development and heritability of these disorders and related symptoms. For example, regulation of the hypothalamus-pituitary-adrenal axis by glucocorticoids plays a major role in stress response and is known to be epigenetically regulated.
Anxiety may cause physical and cognitive symptoms, such as restlessness, irritability, easy fatigue, difficulty concentrating, increased heart rate, chest pain, abdominal pain, and a variety of other symptoms that may vary based on the individual. [2] In casual discourse, the words anxiety and fear are often used
According to these theories, both kinds of stress can lead to changes in behavior and in physiology. Behavioral changes can involve smoking and eating habits and physical activity. Physiological changes can be changes in sympathetic activation or hypothalamic pituitary adrenocorticoid activation, and immunological function. [59]
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