The illustration below shows the location of the alarm points. These are points on the body which are associated with specific meridians and which can become tender when the meridian is under stress. They can also be used to identify over-active meridians.
Touch the alarm points one by one as a muscle is tested (apply gentle pressure to the wrist of an arm being held straight out in front or to the side). If the muscle goes weak it indicates that the associated meridian is under stress.
Tapping the associated alarm point fairly vigorously discharges the excess energy in the associated meridian and enables normalisation of energy flows. This can be quite tender (sometimes exquisitely so) and you may need to get someone else to do this for you -although you can treat yourself. Often the alarm point is not tender initially, but may become so as it is tapped. This is a sign that not only were you in the right place, but that the point needed tapping and the excess energy discharging. It is fairly usual to have at least one over-active meridian at any given time.
A persistently overactive meridian/tender alarm point might indicate either a dental problem that needs resolving (see the Tooth-meridian relationships: Interactive chart), a chronic problem with an internal organ or an emotion that needs addressing.
For an authoritative and thorough explanation of energy medicine read Vibrational Medicine by the late Dr Richard Gerber MD. Click the appropriate link for UK and US Amazon.