Pleasure

Pleasure is commonly conceptualized as a positive experience related to happiness, entertainment, enjoyment, ecstasy, and euphoria.

Pleasure has received much less scientific attention than pain, suffering or depression.

Activities
Pleasure can be brought about in different ways, depending on how every individual senses the feeling of pleasure.

People commonly feel this phenomenon through exercise, sexuality, music, drugs, writing, accomplishment, recognition, service, and any other imaginable activity; even pain. It also refers to "enjoyment" related to certain physical, sensual, emotional or mental experience.

Philosophy
Pleasure may also be defined, at least in some contexts, as being the reduction or absence of pain. Epicurus and his followers defined pleasure as the absence of pain.

The 19th Century German philosopher Arthur Schopenhauer understood pleasure as a negative sensation, as it negates the usual existential condition, that of suffering.

Utilitarianism and New Hedonism philosophies both attempt to increase to the maximum the amount of pleasure and minimize the amount of pain.

Neurology
The Pleasure center is the set of brain structures, predominantly the nucleus accumbens, theorized to produce great pleasure when stimulated electrically. Some references state that the septum pellucidium is generally considered to be the pleasure center while others mention the hypothalamus when referring to pleasure center for intracranial stimulation.

Psychology

 * Sexuality
 * Flow (psychology)