Biofields
Biofield is a term used for different kinds of fields and signals associated with living bodies. Sometimes it refers to things we can measure, such as electrical signals produced by the heart and brain. In other settings, it refers to a less clearly defined energy field said to exist in and around the body.
What are biofields?
These meanings can sound similar, but they are not the same. The body's electrical activity is well understood and routinely measured in healthcare. The idea of a separate energy field that people can sense or influence at a distance is a different claim that researchers are still investigating.
Biofield research therefore covers several kinds of questions. Some studies measure weak physical signals from the body. Others test practices such as Reiki, Therapeutic Touch or distant healing. Researchers want to know both what can actually be measured and whether any reported benefits have explanations beyond familiar bodily and psychological processes.
What does research say?
One part of this research concerns the body's own electrical and magnetic signals. An ECG records electrical activity from the heart, while an EEG records activity associated with the brain. These are clear examples of measurable signals produced by living bodies. They help clinicians study heart rhythms, sleep and brain conditions, but they do not establish the existence of a separate healing energy field.
Scientists have also studied extremely weak light released by living tissue, sometimes called biophoton emission. This light can arise during chemical processes in cells and can be detected using sensitive equipment. It may tell researchers something about how cells work. It has not, however, been shown to carry thoughts, emotions or a special healing energy between people.
Another area examines biofield therapies. In these practices, a practitioner may touch a person, hold their hands above the body or work at a distance. Researchers ask whether people experience less pain, anxiety or stress afterwards.
To understand the results, researchers need fair comparisons. It is not enough to ask whether someone feels better after a session. Ideally, participants are compared with people who receive another activity or a similar amount of time and attention. Otherwise relaxation, expectations and ordinary changes in symptoms may explain some of the improvement.
A broad research map published in 2025 identified 353 studies of different biofield therapies. Some reported positive findings, others mixed findings and others no clear differences. This shows that the area has attracted considerable research, but the number of studies alone does not tell us whether a treatment works. The quality and results of each study still matter.
It also helps to separate two questions: whether a session makes someone feel better and how that improvement might happen. Even a well-designed study showing less anxiety would not automatically demonstrate an invisible energy field. Researchers would need reliable ways to measure the proposed field and connect it to the outcome.
Some researchers have measured what happens in practitioners during healing sessions, including brain activity and changes in heart rhythm. A 2014 review found inconsistent results and no robust, distinctive physiological pattern that could define a special healing state.
Devices claimed to measure a person's biofield raise similar questions. An instrument may record electricity, heat or light without measuring anything spiritual or previously unknown. A useful new method must be clear about what it detects, and independent researchers must be able to repeat its findings.
What do the findings show?
Living bodies produce measurable electrical signals and other weak physical effects. Some studies of biofield therapies report improvements in pain or well-being. Findings vary across treatments and studies, however, and improvement alone does not reveal its cause.
What remains uncertain?
It remains unclear whether a distinct biofield exists beyond signals explained by established biology and physics. Researchers need reliable measurements, stronger comparisons and results that independent teams can repeat.
Overall assessment
Biofield can be a useful umbrella term in some research, but it does not describe one scientifically established mechanism. The body's measurable electrical and magnetic activity is well documented. A separate invisible energy field explaining healing effects has not been convincingly demonstrated.