There is a diverse range of acupuncture theories based on different philosophies, and techniques vary depending on the country.
Acupuncture is accepted as a true to have originated around 100 BC in China, around the time The Yellow Emperor’s Classic of Internal Medicine (Huangdi Neijing) was published, though some authority suggests it could have been practiced earlier.
The origins of acupressure and acupuncture are as ancient as the instinctive impulse to hold your forehead or temples when you have a headache. Everyone at one time or another has used his or her hands spontaneously to hold tense or painful places on the body.
the Acupressure is sometimes very effective to relieve the stress, muscle ache, and help to improve the blood circulation.
It took almost 300 years for Europe and 400 years for the United States to finally appreciate the therapeutic value of acupuncture. Findings from basic medical research that acupuncture stimulation causes a release of endorphins, serotonin, enkephalins, and γ-amino-butyric acid (GABA; a major inhibitory neurotransmitter in the brain), norepinephrine, and dopamine helped to explain the acupuncture effect on a biomedical and pharmacological basis that was acceptable to the Western medical establishment. (this article has been cited in this link)