Final answer:
The subject of this question is Medicine. It is about the preoccupation and fear of having contracted a serious disease despite medical evaluation and reassurance, which is known as illness anxiety disorder or hypochondriasis. Treatment for this condition may involve cognitive-behavioral therapy and stress management techniques.
Step-by-step explanation:
The subject of this question is Medicine. Specifically, it relates to the preoccupation and fear of having contracted a serious disease despite medical evaluation and reassurance. This condition is known as illness anxiety disorder, previously referred to as hypochondriasis.
Illness anxiety disorder is a mental health condition characterized by excessive worry and fearfulness about having a serious medical condition, based on misinterpretation of bodily symptoms. Individuals with this disorder often seek medical evaluations and reassurance repeatedly, even though medical professionals may find no evidence of any underlying medical problem.
Treatment for illness anxiety disorder may involve cognitive-behavioral therapy (CBT) to help individuals challenge and change their anxious thoughts and behaviors, as well as relaxation techniques and stress management strategies.