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The sensation of pain serves a crucial adaptive role by alerting an individual to injury. It motivates behavior to move away from the source of harm and encourages protective actions, such as being more gentle with an injured area, to prevent further damage and facilitate healing.

Adaptive Functions of Pain

Based on the provided scenario, evaluate the athlete's statement that their pain is 'useless.' In your evaluation, explain the biological purpose of both the immediate, sharp sensation and the persistent ache they are experiencing.

Evaluating the Role of Pain

A biologist argues that the sensation of pain, despite being unpleasant, is one of the most critical evolutionary adaptations for survival. Which of the following statements provides the strongest support for this argument?

Congenital insensitivity to pain, or congenital analgesia, is a very rare genetic disorder in which an individual is born without the ability to feel pain. Although individuals with this condition can detect differences in temperature and pressure, their inability to experience pain frequently leads to significant injuries, such as young children repeatedly biting their mouths and tongues. Because of these injuries and resulting secondary infections, those affected typically have much shorter life expectancies.

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