I want to teach you how to stimulate the vagus nerve during throat lock. It is done using one of the bandhas in yoga. Jalandhara bandha is not a pretty bandha, as you get a triple chin when you do it correctly. But it activates the parasympathetic nervous system.
The parasympathetic nervous system (PNS) helps to achieve a state of arousal leading up to orgasm. It is responsible for initiating and maintaining sexual arousal by promoting relaxation, increased blood flow, and lubrication (helping precum). This is why activities like deep breathing, slow movement, and sensual touch help in achieving a state of readiness for orgasm.
Orgasm itself is primarily controlled by the sympathetic nervous system (SNS), which triggers muscular contractions and ejaculation. The transition from parasympathetic dominance (arousal) to sympathetic activation (orgasm) is a key part of tantric and Taoist sexual practices, as controlling this shift can help with delaying ejaculation and experiencing full-body energetic orgasms.
After orgasm, the body shifts into the parasympathetic nervous system (PNS), often called the “rest and digest” state. This transition is responsible for the refractory period, relaxation, and a sense of calm or sleepiness following orgasm.