Any organism develops and lives in conditions of continuous interaction with environmental factors. It is simply impossible to exclude these factors. After all, the external environment is the air that everyone breathes, and the food that everyone eats, and light, and various radiation, and much more.
Moreover, the influence of these factors is both positive and negative. For example, there is such a thing as optimal living conditions, that is, normal temperature, light, humidity, and nutrient richness. All those factors that help the body live and feel great. But exceeding any of these factors can be fatal for a living organism. A change in temperature by several tens of degrees leads to the death of the body.
In addition to natural factors, anthropogenic, and mostly negative, that is, complicating our lives – pollution, noise, stress and others – were added to environmental factors.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.