The excitement phase is the initial stage of the sexual response cycle, characterized by physiological and psychological changes that signify increasing sexual arousal. During this phase, the body undergoes a range of changes such as increased heart rate, heightened blood flow to the genitals, and lubrication, which prepare individuals for sexual activity. This phase sets the foundation for further arousal and ultimately leads to orgasm, playing a crucial role in the overall experience of sexual intimacy.
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