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Excerpt 1

Options for cryogenic suspension include freezing the subjects head or complete body. In either case, the process entails complex scientific procedures that, for maximum functionality, must be implemented immediately upon the cessation of biological functioning. Measures must be taken to minimize tissue decomposition so as to ensure that the subject can be successfully resuscitated at some undetermined future period.

Excerpt 2

Currently, when a person who has signed up to be cryonically suspended dies, a specific procedure, which was outlined in the book Cryonics: Reaching for Tomorrow, must be carried out.

First, before death, an individual must decide whether to have his or her entire body frozen or just the head. If the whole body is to be frozen, it must be preserved upon death. Immediately after deathideally within a matter of minutesthe patient is connected to a heart-lung machine, and chemicals such as glucose and heparin are circulated with the oxygenated blood to help minimize the freezing damage. At the same time, the patients internal temperature is reduced as quickly as possible using cold packs.

If only the head will be frozen, a slightly different procedure must be carried out. The head must be surgically detached from the rest of the body and preserved in a separate container. You may be wondering, Why would I preserve only my head? The answer is, with some diseases the body is in a very poor condition. If this is the case and you choose to preserve your head only, you do so with the belief that medical science will be able to create a healthy new body for you in the future.

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