A pacemaker is a small device that helps control and regulate the beating of your heart. It is implanted in your chest and sends electrical signals to make your heart beat in a regular and steady rhythm. Full definition
Cardiac disease, which includes implantation of pacemakers as well as diagnosis and treatment of all forms of cardiopulmonary disease. (animalemergency.net)
Another option that has been around for two decades consists of a kind of pacemaker for the brain. (scientificamerican.com)
The American findings agree with unpublished results reported last year by researchers in Europe and Australia, who also found that cellphones could interfere with pacemakers in laboratory experiments and human tests. (newscientist.com)