The main objectives of the programming with the XSignal device will be to influence the sexual satisfaction of the participants.

As secondary objectives, the effectiveness of the XSignal device during a defined treatment period will be analyzed in terms of quality of life, pain, stress, anxiety, sexual function, sleep quality, cortisol, heart rate, blood pressure, respiratory rate, and body temperature of the same subjects, compared with a placebo group, observing the long-term influence of the results.

Considering the objectives set: In the first phase, the directing electrode will be located at C6-C7 to generate a systemic and general effect on the organism, with program 1, program 2, program 7, and program 8. In the second phase, the directing electrode will be placed at the abdominal level in the area of the mesenteric plexus to influence the sympathetic innervation of the viscera. In the third phase, the directing electrode is located at S2-S3 to concentrate the action of the therapy on the sacral parasympathetic plexus,. In this way, both the sympathetic and parasympathetic innervation of the main sexual organs are covered through the sympathetic paravertebral ganglia and the sacral plexus.

Inclusion Criteria:

• Subjects from 18 to 65 years
• Sexually active
• Signed consent form

Exclusion Criteria:

• Diagnosed diseases.
• Severe previous psychiatric conditions.
• Medical contraindications that prevent the use of non-invasive neuromodulation therapy.
• Having exercised in the hours prior to the NESA treatment.
• Having consumed coffee or tobacco in the hours prior to the treatment.
• Minors.
• Individuals who have previously received any type of neuromodulation treatment.
• Cancer.

The Placebo group will mimic the Intervention group, but the device will not be connected. With this non-invasive neuromodulation, patiens do not experiment any sensation when the device is connected.