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The English suffixes -phobia, -phobic, -phobe (from Greek φόβος phobos, "fear") occur in technical usage in psychiatry to construct words that describe irrational, abnormal, unwarranted, persistent, or disabling fear as a mental disorder (e.g. agoraphobia), in chemistry to describe chemical aversions (e.g. hydrophobic), in biology to describe organisms that dislike certain conditions (e.g ...
A related, milder form of visually triggered fear or anxiety is called visual height intolerance (vHI). [41] Up to one-third of people may have some level of visual height intolerance. [41] Pure vHI usually has smaller impact on individuals compared to acrophobia, in terms of intensity of symptoms load, social life, and overall life quality.
Unlike acrophobia, a natural fear of falling is normal. When one finds oneself in an exposed place at a great height, one normally feels one’s own posture as unstable. A normal fear of falling can generate feelings of anxiety, as well as autonomic symptoms like outbreaks of sweat. In someone with acrophobia, however, the fear of falling ...
Below are two tables which report the average adult human height by country or geographical region. With regard to the first table , original studies and sources should be consulted for details on methodology and the exact populations measured, surveyed, or considered.
Studies have shown that people with acrophobia and/or an extreme fear of falling have higher scores of SMD, or space and motion discomfort. These are physical symptoms elicited by visual or kinesthetic information that is inadequate for normal spatial orientation. Space and motion discomfort arises when conflicting information is detected among ...
In children, blood-injection-injury phobia, animal phobias, and natural environment phobias usually develop between the ages of 7 and 9 reflective of normal development. Additionally, specific phobias are most prevalent in children between the ages 10 and 13. [35] Situational phobias are typically found in older children and adults. [1]
Often individuals will experience symptoms periodically with periods of remission before complete remission occurs. However, specific phobias that continue into adulthood are likely to experience a more chronic course. Specific phobias in older adults has been linked with a decrease in quality of life. [3]
The height, weight, and head circumference of a child can be compared to the expected parameters of children of the same age and sex to determine whether the child is growing appropriately. Growth charts can also be used to predict the expected adult height and weight of a child because, in general, children maintain a fairly constant growth curve.