Biofield is the term given to the electromagnetic field that permeates and surrounds all living organisms. Although the concept of biofield is new to western medicine, it can be traced to indigenous knowledge and spiritual traditions worldwide.
Some of the biofield emissions from the body are the basis of many technologies commonly used in clinical diagnosis and research, such as electrocardiogram (ECG), electroencephalogram (EEG), magnetocardiogram (MCG) and magnetoencephalogram (MEG). These technologies are used to assess physiological function of heart and brain.
The term PEMF means "pulsed electromagnetic fields" and describes, in modern medicine, the specific application of unique pulsed electromagnetic frequencies and intensities for the health benefit of human beings.
Reiki is a Japanese technique for stress reduction and relaxation that also promotes healing. It is administered by "laying on hands" and is based on the idea that an unseen "life force energy" flows through us and is what causes us to be alive. If one's "life force energy" is low, then we are more likely to get sick or feel stress, and if it is high, we are more capable of being happy and healthy.