Many people wear the X39 patch at the top of the spine.
This is a prominent acupuncture point on the body, and lots of people find it to be their favorite spot for wearing the patch.
I found this point to be too stimulating for me when I began wearing the patches a year ago, but now I will sometimes wear a patch there.
Travis will often wear his X39 patch there, but it took him several months before he liked wearing it there.
The inventor of the patch says that this is a great place for men to wear the patch. Women tend to do better with the patch on their abdomen.
I suggest that you place the patches where you have the most discomfort, and if you don’t have discomfort anywhere, place the patch on your upper neck as shown, or below your belly button.