Today, "big data" is associated closely with profit maximization techniques (such as recommendation lists on e-commerce sites and targeted ads), high-profile data leaks and privacy issues. However, not all data are bad. Here are the positive side of Data Science:  LOGISTICS: e.g.: Airlines Schedule Flights predict delays based on precise weather forecasts, and other market and political happenings. HEALTHCARE : Big data power the idea of self-learning healthcare programs, which will be able to interpret the data of individual patients: not only their gender, age, weight, and medical history, but also their lifestyle, habits, preferences and give the personalized recommendation about adjustments that would be the most beneficial.  FACE RECOGNITION: Long time ago, it was tough to even think about it, but nowadays, Many tools are there which capture details of the current face and match it with millions of faces in about no time.  Self- Drive Cars : It has made life much easier. Either you are driving or you are on a walk, you don't have to worry at even new places. Many taxi companies are dependent on this and even self-driving cars are also there which is dependent. It finds shortest routes, routes without traffic, etc. in about no time. Read more at: http://www.datasciencecentral.com/profiles/blogs/how-data-science-has-changed-everyday-life-for-the-better