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Cryonics (from Greek: κρύος kryos, meaning "cold") is the low-temperature freezing (usually at −196 °C or −320.8 °F or 77.1 K) and storage of human remains in the hope that resurrection may be possible in the future. [1] [2] Cryonics is regarded with skepticism by the mainstream scientific community. It is generally viewed as a ...
Controlled-rate and slow freezing, also known as slow programmable freezing (SPF), [18] is a technique where cells are cooled to around -196 °C over the course of several hours. Slow programmable freezing was developed during the early 1970s, and eventually resulted in the first human frozen embryo birth in 1984. Since then, machines that ...
The conservation of genetic material is not limited to non-humans. Many services provide genetic storage or the preservation of stem cells at birth. They may be used to study the generation of cell lines or for stem-cell therapy. [14] Cryosurgery The branch of surgery applying cryogenic temperatures to destroy and kill tissue, e.g. cancer cells.
Viruses are among the biggest threats to humanity, with the current pandemic showing how these pathogens can shut down countries, halt entire industries and cause untold human suffering as they ...
At least six major areas of cryobiology can be identified: 1) study of cold-adaptation of microorganisms, plants (cold hardiness), and animals, both invertebrates and vertebrates (including hibernation), 2) cryopreservation of cells, tissues, gametes, and embryos of animal and human origin for (medical) purposes of long-term storage by cooling to temperatures below the freezing point of water.
Cryonics is regarded with skepticism within the scientific community and has been characterized as quackery and pseudoscience. [ 3 ] [ 4 ] As of October 2023 [update] , Alcor had 1,927 members, including 222 who have died and whose corpses have been subject to cryonic processes; [ 5 ] [ 6 ] [ 7 ] 116 bodies had only their head preserved. [ 8 ]
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coagulation of blood thereby interrupting bloodflow to the tissue in turn causing ischemia and cell death; and induction of apoptosis , the so-called programmed cell death cascade. The most common application of cryoablation is to ablate solid tumors found in the lung, liver, breast, kidney and prostate.