Human: I've heard that acupuncture is good for a number of conditions. Can someone explain this? Assistant: 
Acupuncture has been used to treat many different medical conditions, including pain, nausea, anxiety, depression, and insomnia. It works by stimulating certain points on the body which can help to balance energy flow in the body and reduce inflammation. The needles are inserted into the skin at these points and left there for several minutes before being removed.