A Charlotte, AR man was recently charged with first-degree murder for scaring a 79-year-old woman to death, according to the Associated Press. The facts of the case are that after a botched bank robbery, the 20-year-old suspect, Larry. Whitefield tried to evade police and broke into Mary? s home in Parnell and hid there. Although Whitfield did not touch Parnell, police say, Parnell died of a sudden heart attack out of fear. After the case, many people have been talking about it. Should the suspect have been responsible for the woman’s death? Prosecutors say that the person should be sentenced according to the felony murder rule, which means that regardless of whether the person acted intentionally or unintentionally, he or she should be charged with murder if he or she caused the death of another person by committing a felony or escaping a felony. The issue is thus legally settled. But, medically speaking, can a person really be scared to death? What is this all about? The American magazine Scientific American interviewed Martin, director of neurology at Brigham and Women’s Hospital in Boston, about this. The magazine “Scientific American” interviewed Martin Seamus, director of neurology at Brigham and Women’s Hospital in Boston. Can people really be scared to death, according to Martin. According to Samuels, the human body has a natural protection mechanism called “fight or flight”, the concept by the former head of the Department of Physiology at Harvard University, Walter. Cannon first proposed. The theory is that in the wilderness, if the animals face a threat to life, its emergency protection system will automatically start, when there will be involuntary heartbeat, pupil dilation, digestion slowed down and other reactions. And all of these reactions are to increase the success rate of fight or flight. This process did play a very important role in the primitive period, but in modern society, the role of this stress response is increasingly limited. In addition, this stress response also increases the stress on the central nervous system and may lead to death. The human vegetative nervous system works by using adrenaline as a chemical signal to send information about imminent attack or danger to various organs to trigger a stress response. This chemical is toxic when it accumulates in large amounts and destroys internal organs such as the heart, lungs, liver and kidneys. Studies have proven that almost all sudden deaths are caused by damage to the heart, and that few organs other than the heart can cause death in a short period of time, and that diseases brought on by the failure of organs such as the kidneys and liver are generally chronic. The adrenaline acts mainly on the receptors of the heart muscle cells, which causes all the calcium channels in the membrane of the heart muscle cells to open. The rapid influx of calcium ions into the heart cells causes the heart muscle to contract, and if there is an overdose of epinephrine, there is a massive influx of calcium ions, which eventually leads to a continuous tightening of the heart muscle. In the heart tissue, there is a unique regulatory mechanism of the CCC sinus node, atrioventricular node and Purkinje fibers that control the rhythmic beating of the heart. If there is too much adrenaline in this system, it can lead to an irregular rhythmical beat of the heart, causing an organ of the body to be triggered irrationally, leading to death. In most cases, sudden death caused by fear is associated with ventricular fibrillation, which hinders the heart’s ability to deliver blood to the body.