So, if you get an electric shock, the electrical current can stop your heart because it causes a wrongly changed voltage in the cell, which causes the cell to initiate the sodium flow chain reaction, which finishes the job. You may generate slower EMPs that can harm the brain or the heart. The heart is particularly vulnerable because it has no way to repair itself. Any damage to its membrane cells will keep you from beating forever. The brain is also very vulnerable to electric shocks. Even small currents can cause brain damage or death. The human body is actually quite resistant to most forms of injury, but an EMP attack could cause enough damage to kill or disable people. An electromagnetic pulse could also destroy vital electronic equipment, causing power outages that could lead to human injuries or deaths. For example, people trapped in cars during a blackout would be at risk for heat exhaustion and other problems. People who are deprived of light, air conditioning, and other amenities would experience mental stress too. An electromagnetic pulse could also damage telecommunications systems, creating communication problems for emergency responders trying to coordinate efforts during a disaster. Finally, an electromagnetic pulse could cause major economic damages by destroying important technological devices, such as the computer network systems used by banks or power companies. Without these devices, people would have trouble transferring money or paying their bills, which could result in financial disasters similar to those caused by conventional attacks.