Answer :

Behavior that is beneficial to others but clearly requires self-sacrifice is called altruism behavior.

Altruism is the moral principle of caring about the happiness of other people or animals, leading to a higher quality of physical and spiritual existence. It is a cherished virtue in many societies and a fundamental component of many religious and nonreligious worldviews. However, different cultures and faiths have different objects of interest. Altruism may, in extreme cases, be confused with selflessness, which is the antithesis of selfishness. The term "altruism" may also refer to an ethical theory that holds that helping others is a moral obligation. It is frequently contrasted with egoism, which holds that people have a moral duty to put themselves first. In order to choose the best ways to help others, effective altruism uses logic and evidence.

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