Luis (Cali, Colombia) on 07/16/2009:
Dear Sir:
There is a small cavity at the end of the insertion of the thumb in hand, over the wrist. This is an acupuncture special point to calm heart palpitations and to make normal the rhythm of heart. You can pressure it with the thumb of right hand in cases of emergency, or to use a band of acuppressure.
To your best days.
Luis