What does biofeedback mean?
Biofeedback is a technique through which people learn to influence normally involuntary bodily processes by watching real-time measurements of them. Sensors attached to the body record physiological signals — heart rate, skin temperature, muscle tension, breathing, or brain waves — and convert them into visible or audible displays, such as a tone or graph. By observing these readouts and experimenting with thoughts, posture, and relaxation strategies, individuals can discover which mental states shift the readings in a desirable direction and gradually train themselves to reproduce those states without the equipment. Practitioners apply biofeedback to migraines, chronic pain, hypertension, incontinence, and anxiety, among other conditions. The word carries a clinical, scientific connotation, sitting comfortably alongside terms like therapy and training, and functions both as a mass noun and as a modifier in phrases like biofeedback device. Its enduring appeal lies in its promise: making the invisible machinery of the body legible, and therefore manageable.
nounA technique in which a person is trained to improve their health or bodily functioning by using electronic instruments to monitor and display physiological signals—such as heart rate, muscle tension, or brain waves—that are normally unconscious, allowing the person to gain voluntary control over them.
- The technique of monitoring physiological processes with electronic instruments so that a person can learn to control them voluntarily.
- The information (signals or readings) provided by such monitoring.
"Using biofeedback sensors to track her breathing, she learned to relax her shoulder muscles at will."
"After several weeks of thermal biofeedback, his migraine frequency dropped noticeably."
"The clinic uses biofeedback from heart-rate monitors to teach patients how to manage anxiety."
"Athletes study biofeedback data to fine-tune their stress responses before competition."
Your heartbeat, once thought untouchable by willpower, can be steered on screen — biofeedback turns invisible body signals into a video game you can learn to win.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of biofeedback
Biofeedback was coined in English in the late 1960s, combining 'bio-', from Greek bios meaning 'life', with 'feedback', a term drawn from cybernetics and engineering that describes a system's output being returned to it as input. The compound arose as psychologists and physiologists began applying feedback loops to living organisms rather than machines. The element bio- appears in numerous related borrowings from Greek, including biology, biopsy, and biosphere.
How biofeedback is actually used
Biofeedback is an uncountable noun: it takes singular agreement ('biofeedback is used...'), not a plural. It belongs chiefly to clinical, psychological, and wellness registers; in everyday conversation it may sound technical but is widely understood. It is often treated as an adjective attributively ('a biofeedback device', 'a biofeedback therapist').
Easily confused with biofeedback
Neurofeedback is specifically biofeedback applied to brain-wave activity (EEG), whereas biofeedback is the broader term covering any monitored physiological signal such as heart rate or muscle tension.