Voluntary tingling sensation throughout whole body.

[Emageht Tsoluoy]

i can do it if i imagine the tips of my ears touching behind my head.
(they don't actually move, but it's enough to start the neural cascade)

it kind of builds up, then releases.

the feeling i get is kind of like goosebumps + butterflies + shivers and radiates from my lower back down my legs, and up to my shoulders.

Also, it is easier to make happen if i am not overweight.

[Saladbar]

Used to do be able to do this voluntarily when I was younger, but only if I was high. I would have to be laying down and completely relaxed. It felt kind of cool the first several times, but eventually got to the point where it was uncomfortable. Haven't done it since.

[PosPosPos]

I tend to do it whenever I feel hot, makes me feel sort of cooler, sort of like mint candies/menthol producing a cooling effect, although the nature of it is probably placebic