Ok. I'm a scientist and I work in clinical trials. I do this shit for a living.
There is no wealth of evidence for Accupuncture. It's an absolute disgrace that taxpayers money is spent on something with no real evidence base. The NHS also has homeopathic hospitals for gods sake!!
There is some pretty good evidence it doesn't work. The article below should be read by anyone who is interested.
www.sciencebasedmedicine.org/acupuncture-doesnt-work/
An opinion piece by David colquhoun and the review article summarising the state of current research. Including an interesting bit on the history of accupuncture.
If you look at accupuncture vs nothing, it appears effective. That's because of the placebo effect. People think something is being done. They get a nice, professional looking white coated person who crucially, spends time with them. They then undergo something which is really like a little mini- ordeal. This is the basis of the placebo effect.
If you look at 'real' accupuncture vs sham needling or needling at random sites however, the effect disappears.
The placebo effect is absolutely fascinating. You can actually give people sugar pills, tell them they're inactive placebo and you STILL see the effect! The reverse is the nocebo (I shall harm) effect, which you can think of in terms of voodoo curses - you think and believe you're going to die, and you do. Also very interesting.
You also have cases of 'regression to the mean' I.e. Getting better anyway and all sorts of other fascinating effects. It's well worth a good read around.
Believe it if you like, practitioners certainly make enough money off people who do. They also make money off homeopathy, crystal healing and a million types of "eat/drink this to get rid of 'toxins'" type shit.
But there's absolutely no evidence that any of it works. None whatsoever. And I get very, very angry when I see blogs online with "I cured my cancer with a vegan diet and realigning my chakras " sort of thing. How many people die from following such advice?
People, please, please think critically about all this sort of thing. Scientists are about as open minded as it gets. We know that most of our drugs are derived from natural compounds. If you bring us a plant or anything that appears to have genuine activity we will test the living day lights out of it. If it works, we will use it. If standing on one leg waving frog entrails above your head cured migraine in randomised controlled trials, we'd be buying shares in frog farms.
But there's a name for alternative medicine that's been proven to work. It's 'medicine.'