The question of increased human life expectancy is clearly of global importance. Even the ancient Greeks (Pelasgians) believed that die at the age of 70 years, almost tantamount to dying in the cradle. (For extant facts allegedly lived up to the Pelasgians 200 years, while maintaining its vitality, they have not weakened eyesight and not sedeli hair.)
Also very extensive geography of malignant neoplasms found, contrary to popular belief, all races and peoples. However, some features in the spread of the disease among the various races exist. So, Blacks are much more common liver tumor, the tumor is detected the nasopharynx, Mongoloid, Caucasoid is lung cancer and skin.
AIDS (SPID in Russian) are a new, first-ever truly global deadly infection, which mankind is unable to stop. In the name of the disease (acquired immunodeficiency syndrome) is its decoding. Immune deficiency is known to lack immunity, i.e. immunity to bacteria, viruses and any infectious agents and alien substances. If, for example, people die from tuberculosis, Koch's Bacillus "egoubivaet". The human immunodeficiency virus (HIV) detected and described in 1983-1988 Gg. American Robert Gull on and Frenchman Luc Montagnier. No one kills the AIDS virus, he only fully "disarm" the body and allows you to kill his other bacilli and viruses: influenza, angina, the abscess on his finger, and so on.
Exploring the evolutionary the spread of many communicable (and invasive) disease, a prominent Russian scientist, academician e. n. Pavlovskiy created the doctrine of natural recordings of so-called vector-borne diseases. Identifying portions of natural foci of the disease to the specific geographical landscape can adequately predict the risk of epidemics. This applies above all to disease, disseminated infection sources — — animals and arthropods disease which "was chosen by" certain landscapes. So, the plague is found in the steppe, desert and semi-desert areas, populated by ground squirrels, Groundhogs, peschanky they and other natural carriers of the plague in nature; tick-borne encephalitis disease common in the forest zone, where live virus vectors of this disease is iksodovye (grazing) mites, etc.
In accordance with the latest ideas, human health is a synthetic category, which includes, in addition to the physiological, mental, intellectual and moral components. It is more or less sick not only the person who has a chronic illness or physical defects, but also one who has a mental disorder, impaired intellect, an unstable psyche. Such a person is usually not in a position to fulfil their social responsibilities on an equal footing with those who are completely healthy. From this point of view, according to authoritative scientists, almost every second inhabitant of the planet is not completely healthy.
