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Death is the end of life; the irreversible cessation of all biological functions that sustain a living organism. The remains of a former organism normally begin to decompose shortly after death. Death eventually and inevitably occurs in all organisms. Some organisms, such as Turritopsis dohrnii, are biologically immortal; however, they can still die from means other than aging. Death is generally applied to whole organisms; the equivalent for individual components of an organism, such as cells or tissues, is necrosis. Something that is not considered an organism, such as a virus, can be physically destroyed but is not said to die, as a virus is not considered alive in the first place.
Euthanasia is the practice of intentionally ending life to eliminate pain and suffering.
Rigor mortis, or postmortem rigidity, is the fourth stage of death. It is one of the recognizable signs of death, characterized by stiffening of the limbs of the corpse caused by chemical changes in the muscles postmortem. In humans, rigor mortis can occur as soon as four hours after death. Contrary to folklore and common belief, rigor mortis is not permanent and begins to pass within hours of onset. Typically, it lasts no longer than eight hours at "room temperature".
Cremation is a method of final disposition of a dead body through burning.
Burial, also known as interment or inhumation, is a method of final disposition whereby a dead body is placed into the ground, sometimes with objects. This is usually accomplished by excavating a pit or trench, placing the deceased and objects in it, and covering it over. A funeral is a ceremony that accompanies the final disposition. Evidence suggests that some archaic and early modern humans buried their dead. Burial is often seen as indicating respect for the dead. It has been used to prevent the odor of decay, to give family members closure and prevent them from witnessing the decomposition of their loved ones, and in many cultures it has been seen as a necessary step for the deceased to enter the afterlife or to give back to the cycle of life.
Decomposition or rot is the process by which dead organic substances are broken down into simpler organic or inorganic matter such as carbon dioxide, water, simple sugars and mineral salts. The process is a part of the nutrient cycle and is essential for recycling the finite matter that occupies physical space in the biosphere. Bodies of living organisms begin to decompose shortly after death. Animals, such as earthworms, also help decompose the organic materials. Organisms that do this are known as decomposers or detritivores. Although no two organisms decompose in the same way, they all undergo the same sequential stages of decomposition. The science which studies decomposition is generally referred to as taphonomy from the Greek word taphos, meaning tomb. Decomposition can also be a gradual process for organisms that have extended periods of dormancy.
Putrefaction is the fifth stage of death, following pallor mortis, livor mortis, algor mortis, and rigor mortis. This process references the breaking down of a body of an animal post-mortem. In broad terms, it can be viewed as the decomposition of proteins, and the eventual breakdown of the cohesiveness between tissues, and the liquefaction of most organs. This is caused by the decomposition of organic matter by bacterial or fungal digestion, which causes the release of gases that infiltrate the body's tissues, and leads to the deterioration of the tissues and organs. The approximate time it takes putrefaction to occur is dependent on various factors. Internal factors that affect the rate of putrefaction include the age at which death has occurred, the overall structure and condition of the body, the cause of death, and external injuries arising before or after death. External factors include environmental temperature, moisture and air exposure, clothing, burial factors, and light exposure. Body farms are facilities that study the way various factors affect the putrefaction process.
Necrophobia is a specific phobia, the irrational fear of dead organisms as well as things associated with death. With all types of emotions, obsession with death becomes evident in both fascination and objectification. In a cultural sense, necrophobia may also be used to mean a fear of the dead by a cultural group, e.g., a belief that the spirits of the dead will return to haunt the living.
Disposal of human corpses, also called final disposition, is the practice and process of dealing with the remains of a deceased human being. Disposal methods may need to account for the fact that soft tissue will decompose relatively rapidly, while the skeleton will remain intact for thousands of years under certain conditions.
There are a variety of religious views on suicide.
Natural burial is the interment of the body of a dead person in the soil in a manner that does not inhibit decomposition but allows the body to be naturally recycled. It is an alternative to typical contemporary Western burial methods and modern funerary customs.
Death is dealt with differently in cultures around the world, and there are ethical issues relating to death, such as martyrdom, suicide and euthanasia. Death refers to the permanent termination of life-sustaining processes in an organism, i.e. when all biological systems of a human being cease to operate. Death and its spiritual ramifications are debated in every manner all over the world. Most civilizations dispose of their dead with rituals developed through spiritual traditions.
Hmong people have a culture built on animistic beliefs and a strong faith that after death the soul reincarnates as one of many forms such as humans, plants, rocks and ghosts. Death is often considered the most important time for practicing rituals in the Hmong community because without practicing the necessary rituals the soul will roam for eternity. Hmong culture has been around for thousands of years and some of the rituals have slightly changed due to immigration and urbanization. Throughout time rituals have always varied from tribe to tribe therefore there is no one-way of performing the pre-funeral rituals, the burial rituals and the post burial rituals. However, the differences are minor and are aimed at achieving the same goal of reincarnation.
The death care industry in the United States includes companies and organizations that provide services related to death: funerals, cremation or burial, and memorials. This includes for example funeral homes, coffins, crematoria, cemeteries, and headstones. The death care industry within the U.S. consists mainly of small businesses, although there has been considerable consolidation over time.
Buddhist views, although varying on a series of canons within the three branches of Buddhism, observe the concept of euthanasia, or "mercy killing", in a denunciatory manner. Such methods of euthanasia include voluntary, involuntary, and non-voluntary.
During the Pre-Hispanic period the early Filipinos believed in a concept of life after death. This belief, which stemmed from indigenous ancestral veneration and was strengthened by strong family and community relations within tribes, prompted the Filipinos to create burial customs to honor the dead through prayers and rituals. Due to different cultures from various regions of the Philippines, many different burial practices have emerged. For example, the Manobos buried their dead in trees, the Ifugaos seated the corpse on a chari before it was brought to a cave and buried elsewhere. The most common forms of traditional burials are supine pits, earthenware jars, and log coffins, and have been a topic of interest among Philippine archaeologists since the early 20th century.
Death in Islam is the termination of worldly life and the beginning of afterlife. Death is seen as the separation of the soul from the human body, and its transfer from this world to the afterlife.
Death in 19th-century Mormonism involved several unique religious rituals, cultural customs, and eschatological beliefs. In the years of the Church of Christ and, later, in the Church of Jesus Christ of Latter-day Saints, death played a prominent role in the lives of members due to various diseases, forced removal from settlements, the harsh nature of life on the American frontier, and the lack of medical knowledge at the time. Mormon mortality rates climbed through most of the century until a permanent settlement in Utah Territory was established and advances in medical science were made. Before these improvements, the commonality of death in Latter-day Saint communities produced a distinct culture surrounding the death of a member of the community. The dying were either blessed to be healed or to be received into heaven, depending on the person's wishes. A phenomenon known as the "beautiful death" set forth traditions such as family and friends gathering around a person's deathbed to witness their transition into the next life. Nineteenth-century Latter-day Saints came to terms with the frequent deaths of loved ones – especially those of infants and children – by turning to the teachings offered by their religion.
References
- ↑ Koshland, Daniel E. Jr. (March 22, 2002). "The Seven Pillars of Life". Science. 295 (5563): 2215–2216. doi: 10.1126/science.1068489 . PMID 11910092.
- ↑ The American Heritage Dictionary of the English Language, 4th edition, published by Houghton Mifflin Company, via Answers.com:
- "The property or quality that distinguishes living organisms from dead organisms and inanimate matter, manifested in functions such as metabolism, growth, reproduction, and response to stimuli or adaptation to the environment originating from within the organism."
- "The characteristic state or condition of a living organism."
- ↑ Definition of inanimate. WordNet Search by Princeton University.
- ↑ "Merriam-Webster Dictionary". Merriam-Webster Dictionary. Retrieved 2009-06-21.
- ↑ "organism". Chambers 21st Century Dictionary (online ed.). Chambers Publishers Ltd. 1999. Retrieved 2012-05-26.
