Modern medical sciences has made it possibl

Nowadays, medical sciences is developing too quickly that help people live much  longer than in the past. I will explain effects of this problem on increased population and society too, in this essay. Many years ago, a lot of people were killed by different viruses and bacterias illnesses because they were unknown and cares and remedys were limited. Most of the sickness did not have drugs and they were not diagnosed for centuries. There were not vaccination and most of the times indistinct illness like pluge caused many people killed. As a result, population was increasing dramatically. On the other hand, the world and crowds were in danger so much. Consequently, scientists and doctor started to discover and made many new pills and vaccinations that helped people live so longer than in the past. For example, tuberculosis had been one of the killer sickness in the world many years ago. Fortunately, today this illness has disappeared because children are vaccinated against it after they were born. These days a large number of save life drugs are discovered which people can even alive 100 years. Nowadays many young couples prefer to have a child, or they do not like to have children. It can be a big problem in the world. The elders should live alone or they are looked after in old people s home these days. Because most of them do not have a child, or they are left by their children. In addition to, most societies have shortage of young people for working as a result, they have to accept migratory people for filling their shortage populations. For instance Canada is a developed country where is made modern drugs in contrary, this country has to settle another countries people for compensating shortage number of people who can work and be useful for this country. In my opinion, governments should encourage parents have children by allocating special budgets for them. Also, children should be taught which protect their parents when they become aged and need to be taken care. In conclusion, if modern medical science is a huge help that number of people take safe, they will damage societies which is so harmful.