Orgasm

An orgasm, also known as a sexual climax, is a pleasurable physical, psychological or emotional response to prolonged sexual stimulation. It is often accompanied by a notable physiological reaction, such as ejaculation, blushing or spasm and may be followed by aftershocks.

Shared physiology

Orgasm is the conclusion of the plateau phase of the sexual response cycle, shared by males and females alike. During orgasm, both males and females experience quick cycles of muscle contraction in the lower pelvic muscles, which surround both the anus and the primary sexual organs.

Related Topics:
Pelvic muscles - Anus

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Orgasms in both men and women are often associated with other involuntary actions, including vocalizations and muscular spasms in other areas of the body. Also, a generally euphoric sensation is associated with orgasm.

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Afterwards, orgasm generally causes perceived tiredness, and both males and females often feel a need to rest. This is often attributed to the release of endorphins during orgasm causing relaxation and drowsiness, but can also be due to the body's need for a short rest after a bout of vigorous physical activity.

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A recent study at the University of Groningen has indicated significant differences in brain activity during the female and male orgasm. PET scans showed that both the female and male orgasm 'shut down' areas in the brain associated with anxiety and fear (the Amygdala). It was found that the male orgasm focused the brain on sensory input from the genitals more than was the case for the female orgasm.

Related Topics:
University of Groningen - PET - Amygdala

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