As human lives evolve, human beings should always affect to the environmet anyways. Accordingly, pollution has occured such as air pollution or water pollution which can be harmful to human health. However human lifespan has dramatically increased in the past century. How has human lifespan increased with bad environment? The answer would be improved many kinds of technology which include better medicine and nutrition.
Many diseases are discovered for decades. Without only some of diseases include bacteria and viruses, most of them which cause illness are easily able to treat. Some illnesses which were deadly to human life in the past century can be treated by only one tablet nowadays. In addition, mechanic technology and biomedical technology improve medical technology. Only basic surgeries were able to be possible in last centuries. But doctors can operate very difficult surgery such as cancer, brain, and heart these days. If there was no medical machine which combined all technology of biomedical and mechanic, it would be not able to operate those surgeries. |