The area I am most interested in is the realm of biostatistics. Statistics can be used in this regard to do anything from summarize the results of a drug trial, determining whether Prozac really is more effective than the placebo sugar pill, to tumor detection in cancer patients. Please check out this presentation I found: 

[What is Biostatistics?][1]

Remember, a statistician is a function that maps a set of data to a set of decisions.

  [1]: http://www.stat.ncsu.edu/biostat/biomed.pdf