Alan terrified of spiders reveals that he is suffering from a psychological disorder called Specific phobia.
An extreme, pervasive fear of a particular thing or circumstance that is disproportionate to the real risk is known as a specific phobia. There are many different kinds of phobias, and it's common to have a particular phobia about more than one thing or circumstance. Specific phobias are excessive and irrational apprehensions about things or circumstances that actually present minimal threat but yet cause anxiety and avoidance. Specific phobias, as opposed to the fleeting nervousness you would have before making a speech or passing an exam, are long-lasting, produce strong bodily and psychological reactions, and might impair your ability to conduct yourself regularly at work, at school, or in social situations.
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