Vulcan neuro - pressure Vulcan neuro - pressure was a mental and physical technique for relaxing the mind and muscles . It involved stimulating neural node s and pressure point s in a Vulcan or Human body . A highly specialized discipline , neuro - pressure involved numerous techniques , was extremely difficult to learn , and took years to master . Also being very personal , it required a great deal of physical contact . One of the techniques involved in neuro - pressure was a specific breathing method . Other neuro - pressure techniques included the " surah ' tahn " and the " Khavorta " posture ( the latter of which was difficult because of the necessity for not only a certain breathing method but also a relaxed jaw ) . An application of neuro - pressure for combat was the so - called Vulcan nerve pinch . Neuro - pressure could result in paralysis , but the risk of that ( at least when neuro - pressure was done by a skilled practitioner ) was minimal . Neuro - pressure conducted by a novice could also result in the recipient experiencing headache s or even receiving nerve damage . ( , ) History . Aboard , T ' Pol – who was skilled in neuro - pressure – began administering it to Commander Tucker after his sister died , as he was having trouble sleep ing . ( ) As far as T ' Pol was aware , Vulcan neuro - pressure was never tried on a Human prior to her sessions with Tucker . ( ) Those sessions typically took an hour or thereabouts . ( ) Following his first neuro - pressure session with her , Tucker slept very well . ( ) In a conversation in " Enterprise " s mess hall after Tucker had his first neuro - pressure session , he notified Lieutenant Malcolm Reed that T ' Pol had been showing him " how to stimulate [ his ] neural nodes " in an attempt to help him sleep , though Tucker also warned that the neuro - pressure wasn ' t what Reed was thinking it was . In reply , Reed stated , " " I wasn ' t thinking anything . " " T ' Pol likewise informed Dr . Phlox that the first neuro - pressure treatment she administered to Tucker had gone well . Upon discovering Tucker had only had an hour ' s sleep during the previous night , Phlox was surprised the neuro - pressure apparently wasn ' t working and began to suspect it was because Tucker felt uncomfortable with the degree of intimacy it required . However , Tucker dismissed that notion , saying he was too busy to participate in a neuro - pressure session with T ' Pol once a night . Since the only alternative treatment for his insomnia was Aldebaran mud leech es , he immediately rethought his decision by indeed agreeing to have one of T ' Pol ' s neuro - pressure sessions nightly . ( ) After canceling two sessions with her due to being extremely busy , Tucker soon returned to T ' Pol ' s quarters for another neuro - pressure session late one night , additionally bringing her some Georgia peach es as a gift . At T ' Pol ' s insistence , her next neuro - pressure session with him was planned to include stimulation of the neural nodes on his feet , as there were many neural nodes in the soles of the feet ( at least in a Human body ) . Though he was initially shocked by the suggestion due to being ticklish , he eventually agreed to the plan . T ' Pol began the session by stimulating the neural nodes on Tucker ' s back . He at first felt her touch was too cold but then began to enjoy the session , which was thereafter abruptly ended when T ' Pol was called to the command center by Captain Archer . ( ) Tucker soon became quite skilled in neuro - pressure , mastering techniques such as the " surah ' tahn " and the relatively difficult " Khavorta " posture . ( ) When , in December of 2153 , Tucker revealed to T ' Pol that he had begun thinking she had been avoiding him , she replied , " " Three neuro - pressure sessions a week is hardly avoiding you . " " ( ) Later that month , Tucker began conducting sessions in which he administered neuro - pressure to MACO Corporal Amanda Cole , outwith T ' Pol ' s supervision and awareness . Cole was a willing participant in these sessions and Tucker taught her the correct breathing technique for neuro - pressure . About a week after they began their neuro - pressure sessions with each other , Tucker and Cole had one of the sessions in which , although Cole found Tucker applying neuro - pressure to her right foot initially felt okay , she jerked that foot away from him , moments later . Tucker briefly considered that he might be doing the neuro - pressure incorrectly , though Cole suggested trying another posture , so Tucker instead tried applying neuro - pressure to Cole ' s back , which felt " great " to Cole . She was disappointed that neuro - pressure couldn ' t be included in a training routine which Major J . Hayes regularly put the MACOs through . Though Tucker suggested proposing the idea to Hayes , Cole was extremely doubtful that he would accept neuro - pressure into the MACOs ' regimen . By the time Tucker was finished applying neuro - pressure to Cole ' s back , she felt extremely refreshed , as if she had just awoken after twelve hours sleep , which lead Tucker to suspect he had been doing the neuro - pressure correctly after all . When Cole visited Phlox with complaints of recurring headaches and a mention of the neuro - pressure she had been receiving from Tucker , Phlox began to suspect the neuro - pressure was to blame for Cole ' s headache , thinking Tucker might have misapplied one of the techniques , as he had only been receiving neuro - pressure for the past couple of months . Phlox therefore cautioned Cole to be cautious about accepting any more neuro - pressure from Tucker . When Phlox told T ' Pol about his theory that the neuro - pressure Cole had been receiving might be responsible for her headaches , T ' Pol concurred that this was indeed possible . On Phlox ' s request , T ' Pol spoke to Tucker about his neuro - pressure with Cole , attempting to encourage him to no longer adminster Cole with it . T ' Pol also arranged a neuro - pressure session with Cole herself , since Phlox had suggested to T ' Pol she could thereby attempt to undo some of the inexperienced work on Cole which Tucker had done . Cole appreciated T ' Pol taking some time to do so but winced at least once during the session , in response to T ' Pol pressing too hard on her back . Promising to try not to press that hard again , T ' Pol resumed the session with Cole . Shortly afterwards , Lieutenant Reed asked Tucker , in the mess hall , if he could confirm rumors that T ' Pol was now giving Cole neuro - pressure and that it was " damage control " from Tucker ' s " tender touch " . Tucker essentially did confirm these details , though tried to downplay them . Reed was right to be suspicious of there being more to Tucker ' s relationships with both Cole and T ' Pol than just neuro - pressure . However , Tucker attempted to deny the intimacy of that practice . In reply , Reed tried to make light of Tucker ' s answer by starting to humorously imply he would like Tucker to conduct neuro - pressure on him , though Tucker cut him off mid - sentence . At night , T ' Pol and Tucker had another of their neuro - pressure sessions . While lying on his back , Tucker admitted he had been eagerly anticipating the session throughout the day . After Tucker changed position , he wondered why the few neuro - pressure sessions he had participated in with Cole had been such a big deal , which led him and T ' Pol to discuss their relationship , a conversation which preceded sexual interaction ( for the first time ) between them . Though they later agreed to forget about their sexual encounter , they meanwhile arranged to continue their neuro - pressure sessions . ( ) After T ' Pol was confined to quarters in January 2154 , Tucker cited neuro - pressure treatment , purportedly on orders from Phlox , as an excuse for Corporal D . Chang to let him see her . Chang initially fell for Tucker ' s ruse , allowing Tucker into T ' Pol ' s quarters . However , when Tucker returned while feigning nerve damage from the previous session , Chang refused to let him see T ' Pol but was so distracted himself that Lieutenant Reed and Doctor Phlox quickly crept up on him , seized a particle rifle he was carrying , and rendered him unconscious with a hypospray , prior to them and Tucker finally releasing T ' Pol . ( ) Weeks after Tucker and T ' Pol had their last neuro - pressure session , Tucker visited T ' Pol ' s quarters under the pretense that he had come for another session . He claimed that he was again suffering from insomnia and that he believed the neuro - pressure would be good to relieve stress they had been under . T ' Pol , however , wanted to stop the treatment , saying her reluctancy to continue it was because Tucker had become so skilled at neuro - pressure that she felt she had taught him all she could . Tucker initially questioned her explanation but then decided to admit he had actually come because he was concerned about her . ( ) Later in 2154 , Tucker became extremely worried about T ' Pol serving as a test subject for a makeshift telepresence unit but Phlox advised him not to interfere in the experiments . Trying to dismiss this advice by exemplifying poorly judged suggestions Phlox had made , Tucker cited Phlox having recommended the neuro - pressure between him and T ' Pol . Phlox reminded Tucker it had been prescribed as an effort to remedy his trouble sleeping . ( ) In a holographic program set in 2161 , a holographic version of Phlox casually informed – once portrayed by William T . Riker , in 2370 – about the neuro - pressure treatment which Tucker had reluctantly received . ( ) Background information . As scripted for , the displays of Vulcan neuro - pressure performed in that episode would have been done while the participants were kneeling on the floor rather than , as they are in the episode , sitting on a bed . In the original script for , Archer suggested to T ' Pol that neuro - pressure might be helpful for his pet beagle Porthos , as the dog had been experiencing stress over being in the Delphic Expanse , and because Archer had heard neuro - pressure had been helpful for Tucker . ( " Twilight " audio commentary , ENT Season 3 Blu - ray special features ) However , this conversation was written out of the episode by the time the final draft of the script was issued . Manny Coto struggled with the writing of a neuro - pressure scene in . " " I was a little bit concerned about having to write one of these massage scenes , " " he explained . " " They had been going on throughout the [ third ] season [ . . . ] They were supposed to be sensual and they were tough to write because , I think , before this episode , they had done four or five , and it was tough to come with a new idea [ . . . ] It was a little bit of a challenge coming up with a new position , so to speak . " " Despite this difficulty , Coto managed to conceive of a foot - related massage technique being incorporated into the Vulcan neuro - pressure . ( " Similitude " audio commentary , ENT Season 3 DVD ) The final draft script of " Harbinger " pointed out that a particular posture for neuro - pressure is shown in both that episode and " Similitude " , described in the script as " lying side - by - side , but in opposite directions . " Also , an ultimately excised line of dialogue from the same script would have established that the proper breathing technique for neuro - pressure was ( in T ' Pol ' s words ) to , " at the end of every third breath , hold for five seconds . "