Cryonics possibility in future....

    Is Cryonics a possibility for bringing back dead people?    Today in this world each second a number of people die every day some due to diseases or any other circumstances. And it's impossible to bring back the dead one to life. Although the use of Defibrillators and CPR bring accident and heart attack victims back from the nearly death state on an almost daily basis.    "Neurosurgeons often cool patients' bodies so they can operate on aneurysms -- enlarged blood vessels in the brain -- without damaging or rupturing them. Human embryos that are frozen in fertility clinics, defrosted and implanted in a mother's uterus grow into perfectly normal human beings". Cryonics is a technique in which a person's body is kept in cold temperature in hope that one day he will revive in the future. It can be performed only when a person is legally dead. Cryonics procedure is a bit complex This works as follows when your heart stops beating and you are pronounced "legally dead," an emergency response team from the facility springs into action. The team stabilizes your body, supplying your brain with enough oxygen and blood to preserve minimal function until you can be transported to the suspension facility. Your body is packed in ice and injected with heparin (an anticoagulant) to prevent your blood from clotting during the trip. A medical team awaits the arrival of your body at the cryonics facility. Once you are transported to the cryonics facility, the actual "freezing" begins. Cryonics facilities can't simply put their patients into a vat of liquid nitrogen, because the water inside their cells would freeze. When water freezes, it expands -- this would cause the cells to simply shatter. The cryonics team must first remove the water from your cells and replace it with a glycerol-based chemical mixture called a cryoprotectant Once the water in your body is replaced with the cryoprotectant, your body is cooled on a bed of dry ice until it reaches -130C. The next step is to insert your body into an individual container that is then placed in a large metal tank filled with liquid nitrogen at a temperature of-196 C. Body is stored head down so if a leak is there your brain is immersed in liquid. In recent years several Cryonics facilities are available. But the main question arises is it really worth it? Because it's not an affordable procedure it requires a lot of money and funds if you want to do it after your death. Several people claim that it's only a money-making procedure for people who have opened such facilities. But if it's really not worth why people are still hoping for it? Well as of until now not a single person is revived.