In the course of time, physics as a science underwent great changes. From a subdivision of philosophy it gradually turned into an applied science and then, in the 20th century, into an extremely complicated, greatly specialized and somewhat closed science. For the majority of this time physics has been rather ambiguously limited, describing the movements of celestial bodies and other material objects that stand behind the construction of many mechanisms and so on. To be a physicist was to know something about all these fields. But in the 20th century and, especially, after the works of Albert Einstein, everything changed. Physics split into a number of very narrow and very specialized fields, sometimes with little connection between each other. The majority of scientists work in one and the same field their entire lives.
Educated people are health conscious and live longer than their counterparts because they engage in healthy habits such as eating a balanced diet, exercising regularly and going for medical check ups. By investing in education, one will also be investing in their health. Education serves to create room for technological advancements in the field of medicine and agriculture. Advanced technology used for conducting surgery has replaced traditional methods. This has seen an improvement in people’s general health and an increased life expectancy. Most developing countries have a low life expectancy compared to developed countries. This can be attributed to high illiteracy levels present in developing countries. This translates to poor health and poor eating habits.