Acupressure is an alternative medicine technique
similar in principle to acupuncture. It is
based on the concept of life energy which flows through "meridians"
in the body. In treatment, physical pressure is applied to acupuncture points with
the aim of clearing blockages in these meridians. Pressure may be applied by
hand, by elbow, or with various devices.
Some medical studies have suggested that acupressure may
be effective at helping manage nausea and vomiting, for helping lower back
pain, tension headaches, stomach ache, among other things, although such
studies have been found to have a high likelihood of bias. Like many
alternative medicines, it may benefit from a placebo effect.