There are a lot of people who swear behind the treatment method known as acupuncture, which can supposedly help you with pain issues and other health issues, there are also a lot of people who think it's complete malarkey.
The idea is that by poking the surface of the skin with needles, the flow of qi can be improved, and this solves problems with the body.
Although it's a huge controversial topic, there are a lot of countries in the Eastern hemisphere that believe in the treatment and most will have a positive reaction to it. On the other hand, science has a hard time understanding how and why it "works."
Despite how controversial it is, this ancient form of bodily treatment is still used today.