A device has been designed that allows the safe and homogeneous delive
ry of very low levels of amplitude-modulated electromagnetic fields to
human beings by placing a spoon-shaped antenna in the mouth of subjec
ts. This new method has been termed low energy emission therapy (LEET)
. In two separate double-blind crossover studies performed on a total
of 104 healthy volunteers, the potential relaxation effects of a 15-mi
nute treatment with either an active or an inactive LEET device were i
nvestigated. All subjects were exposed to both active and inactive LEE
T treatment sessions, with an interval of at least 1 week between the
two sessions. Blood pressure and pulse were recorded before and after
treatment sessions and a subjective questionnaire was completed by the
patient at the end of each treatment session. A decrease in systolic
blood pressure (p = 0.016, two-tailed t-test) as well as a subjective
feeling of warmth (p = 0.012, two-tailed McNemar test) and muscular re
laxation (p = 0.005, two-tailed McNemar test) was noted following acti
ve treatment sessions. It is concluded that LEET induces relaxation in
healthy volunteers which is associated with a decrease in systolic bl
ood pressure, no change in pulse, and a subjective feeling of warmth p
robably due to peripheral vasodilation. The data suggest that LEET may
become a new therapeutic modality in the field of stress medicine.