Why does a person self-ignite

Why and how a person can actually burn down alive in his apartment, on the street or in an abnormal zone. In addition to very fantastic and fantastic hypotheses, we know of at least a dozen hypotheses:

1. The denial of the possibility of spontaneous combustion is still the most common point of view among specialists who most often explain various CAUSAL REASONS as an explanation. They also claim that the victims are only inadvertently smoking and sufficiently drunk. But this version does not explain all the mysteries of phenomena. By the way, Lebih proved that it is impossible to soak alcohol with live tissue, so that it ignited and charred.
2. at the beginning of the twentieth century, among the scientists, the "GAS THEORY" was popular, based on the assumption that every living body gives off some volatile formations that under certain circumstances can burst into flames. However, this version was experimentally disproved.
3. Soon after, enthusiasts put forward an even more exotic "FREEDOM" VERSION: allegedly some biological substances can burn at all without fire. How? This question remained open. However, you yourself can answer it: if you conduct a series of experiments - try, for example, to hold a thousand chicken carcasses over the fire, if at least one carcass flares up like a torch - consider that there is something in the flameless theory.
4. As a development of the previous one, a new "microwave HYPOTHESIS" can also be offered: unfortunate people burned deadly microwave radiation that can fry a person inside untouched clothes, like a partridge in a microwave oven.
5. In the spring of 1997, the Moscow inventor Stanislav Nikolaevich SMIRNOV suggested that the unfortunate self-igniting people are killing nothing but TELLURISTIC RADIATION from under the surface of the Earth.
6. MAGNETIC BURY as an explanation of spontaneous combustion was put forward by the American scientist Livingstone Gerhard. How it (the storm) can burn a person - from a physical point of view, the question is more than dark.
7. VERSION OF CHAIN ​​CHEMICAL REACTION was put forward by American scientists. In their opinion, under the influence of the alcoholic environment (indeed, most of the victims of spontaneous combustion were well drunk), hydrogen atoms with glucose molecules can enter into a rapid chain reaction. Experienced by no one this seemingly simple version did not confirm ...
8. "BOMBA INSIDE EACH MAN!" - with such a sensational statement made by the Swiss scientist Ludwig Schumacher. He came to the conclusion that supposedly existing in nature, but not known to science, radiation and energy beams, interacting with a person's biofield, can spontaneously trigger a superpower flash, which leads to self-ignition.
9. In the autumn of 1997, the Moscow publicist Sergei Ivanovich DEMKIN put forward a slightly similar to the previous one, but still his own version. This is COLD NUCLEAR SYNTHESIS. In his opinion, in the moments of spontaneous combustion, human cells begin to work spontaneously as aggregates for obtaining the reaction of a cold thermonuclear reaction.
10. Heavy weapons using some kind of lethal radiation.
11. DIFFERENT TEMPORARY BALL LIGHTNING
    The mysterious selectivity of the flame, devouring the human body and practically not affecting clothes and surrounding objects, as well as the strange obedience of the victims, dying, but not trying to escape (as if they ... are paralyzed!).
    The human body in its composition is far from being a flammable material, if only because it consists of water and incombustible fabrics for 3/4. To burn it, you need special conditions: the temperature is more than a thousand degrees and a long time (several hours). Even a direct hit of lightning can leave only individual burnt areas on the body, but can not completely burn a person.