"Why do humans live?" is a philosophical and profound question that asks about the purpose and meaning of human existence.

The answer to this question can vary from person to person and can be interpreted differently depending on the era, culture, and individual experiences.

However, we can explore this question through several key philosophical perspectives and ideas regarding human existence.

First, from a biological perspective, the purpose of human existence is explained as survival and reproduction.

This is a logic from an evolutionary standpoint, where humans live to maintain and develop their species as living beings.

Humans, evolved through natural selection, sustain life through physiological needs and social interactions, and passing on genes to future generations is the fundamental purpose of living beings.

Second, from a religious perspective, many people believe that the purpose of human existence lies in fulfilling God's will and seeking spiritual growth or salvation.

In Christianity, it is taught that the purpose of life is to follow God's will, practice love, and ultimately establish a relationship with God.

Similarly, in Buddhism, the ultimate goal is presented as escaping the cycle of enlightenment and reincarnation.

Third, from a philosophical perspective, the purpose of human existence can also be seen as self-realization and the search for meaning.

For example, existentialist philosophy argues that humans must create their own meaning of existence.

Existentialist philosophers like Jean-Paul Sartre emphasized that humans are beings capable of making free choices, and it is important to give meaning to one's life.

Additionally, there is an argument that humans should live a valuable life through self-actualization.

Fourth, from a social perspective, it can be said that finding meaning in relationships with society and others, and fulfilling roles as members of a community, is important.

As social animals, humans feel value and find meaning in life through interactions with others.

Many people discover the purpose of life through relationships with family, friends, and loved ones, and realize themselves through social contributions.

Ultimately, the answer to the question, "Why do humans live?" is not simply defined by one answer.

Each individual finds their own purpose and meaning in life, which is a process influenced by biological, philosophical, religious, and social factors.

The journey to find the meaning of life is one of the most important questions humans experience, and through this, humans continuously explore themselves and grow.