421_2-2014.pdf

The science of love is still in its infancy. Yet scientists are beginning to get early insights into the nature and origin of love.

We can now look inside human brains to view changing patterns of activity and biochemical changes that take place during love, explore diverse human experiences of love, study how we select mates and woo lovers, and look for the evolutionary roots of love. Â Is there anything universal behind all this diversity? As Pope Benedict recently asked in his first encyclical letter: "Are all the forms of love basically one, so that love, in its many and varied manifestations, is ultimately a single reality?"

Love represents a range of human emotions and experiences related to the senses of affection and sexual attraction. The word love can refer to a variety of different feelings, states, and attitudes, ranging from generic pleasure to intense interpersonal attraction. This diversity of meanings, combined with the complexity of the feelings involved, makes love unusually difficult to consistently define, even compared to other emotional states.

As an abstract concept love usually refers to a strong, ineffable feeling towards another person. Even this limited conception of love, however, encompasses a wealth of different feelings, from the passionate desire and intimacy of romantic love to the nonsexual. Love in its various forms acts as a major facilitator of interpersonal relationships and, owing to its central psychological importance, is one of the most common themes in the creative arts.

The English word love can have a variety of related but distinct meanings in different contexts. Often, other languages use multiple words to express some of the different concepts which English relies mainly on love to encapsulate; one example is the plurality of Greek words for "love". Cultural differences in conceptualizing love thus make it doubly difficult to establish any universal definition. Â Although the nature or essence of love is a subject of frequent debate, different aspects of the word can be clarified by determining what isn't "love". As a general expression of positive sentiment (a stronger form of like), love is commonly contrasted with hate (or neutral apathy); as a less sexual and more emotionally intimate form of romantic attachment, love is commonly contrasted with lust; and as an interpersonal relationship with romantic overtones, love is commonly contrasted with friendship, though other definitions of the word love may be applied to close friendships in certain contexts.

When discussed in the abstract, love usually refers to interpersonal love, an experience felt by a person for another person. Love often involves caring for or identifying with a person or thing, including oneself.