The place and role of knowledge of life safety basics in the modern world
Scientists and biologists believe that the human life expectancy is 130 - 150 years. In fact it is proved in the case of long-livers. The real life expectancy depends on many factors that determine the conditions of human life.
Life expectancy has increased rapidly since the Enlightenment. Estimates suggest that in a pre-modern, poor world, life expectancy was around 30 years in all regions of the world. In the early 19th century, life expectancy started to increase in the early industrialized countries while it stayed low in the rest of the world. This led to a very high inequality in how health was distributed across the world. Good health in the rich countries and persistently bad health in those countries that remained poor. Over the last decades this global inequality decreased. Countries that not long ago were suffering from bad health are catching up rapidly. Since 1900 the global average life expectancy has more than doubled and is now approaching 70 years (tab. 2).
Table 2
Life expectancy in different countries
| Rating | Country | Life Expectancy (years) |
| 1 | Hong Kong | 84.0 |
| 2 | Japan | 83.5 |
| 3 | Italy | 83.1 |
| 4 | Singapore | 83.0 |
| 5 | Switzerland | 83.0 |
| 10 | France | 82.2 |
| 116 | Russia | 70.1 |
| 123 | Kazakhstan | 69.4 |
| 190 | Swaziland | 49.0 |
Life expectancy is responsive to changing living conditions. Life conditions, people lifestyle are directly connected with life safety. Annually in extreme situations hundreds of thousands of people die directly and millions of people indirectly. All the reasons of this category are directly related to this course.
It is unlikely that ever one will be able to exclude extreme situations (at least natural disasters) and due to them death of people. Thus reducing the number of people who die because of ignorance, inability or unpreparedness is the main objective of the course "Life safety basics".