The definition of technology is science or knowledge put into practical use to solve problems or invent useful tools.Health. Technology has had a huge impact on the healthcare industry .technology can help treat more sick people and consequently save many lives and combat very harmful viruses and bacteria. ... Technology has also increased the productivity of almost every industry in the world.a person enters a re-enactment of a traumatic event. It has also been used to treat anxiety, phobias and depression. Virtual reality technology can provide a safe environment for patients to come into contact with things they fear, whilst remaining in a controlled and safe environment.