How can distraction in environment affect Quality of Life for humans? Firstly, life expectancy can be highly affected by ingesting issues and pollution situations depending on the country. Basically, when you ingested food that are death-dealing or involves specific bacterias that can cause illnesses, it can abbreviate the amount of time you are expected to live. For example in South Africa, the life expectancy are abbreviated by HIV/AIDS because they get influenced and disseminate really quickly (Source). HIV/AIDS is now a major issue all over the world. They are having a hard time in sanitation facility accesses which means they are have access to toilets and cleaning of sewage. However, it is not always the same, sometimes, good environment and nature can be more prone to diseases.