There are many sources of electromagnetic radiation (ELF): battery-operated devices, cell phone, TV remote, blow dryers, computers. These three devices all radiate 60-hertz frequency waves. Twenty-five (25) patients were tested under 3 conditions:

1. Baseline strength established using applied Kineseology
2. An emf generating device (battery operated clock) held in the heart area and strength was measure
3. The Shield was held while the subject still held the clock at the heart area. Strength was measured.

Results: In the two groups, 24 out of 25 people showed a drop in muscle strength. All 24 regained their original level of muscle strength after placing a Shield on their chest for only one minute.