Conversation so far:
pacemaker is related to which part of body
A pacemaker is a small device that's placed in the chest or abdomen.
what is the function of a pacemaker device
A pacemaker is a device placed in the chest or abdomen to help control abnormal heart rhythms, using electrical pulses to prompt the heart to beat at a normal rate.
What happens when then heart rhythms are abnormal
During an arrhythmia, the heart may not be able to pump enough blood to the body.
What are the consequences of Arrhythmia
Arrhythmia can cause symptoms such as fatigue (tiredness), shortness of breath, or fainting. Severe arrhythmias can damage the body's vital organs and may even cause loss of consciousness or death.

Question: Who invented the device
Self-contained rewrite: Who invented the pacemaker