If you like multi-variant statistics, then you're going to love what Melissa Strong, PhD., is doing at IndiOmics, the biotechnology company she founded to gain a greater understanding on how chemicals interact with -- and possibly harm – people that come into contact with them every day. For starters, there are about 84,000 chemicals registered with the Environmental Protection Agency (EPA), according to Strong. From sunscreens and pesticides to plasticizers and hardeners, the average American contains within their body a unique chemical cocktail brewed from their specific path through this world. Factor in different genetics, medical histories, and environmental factors, and you have the sort of combinatorial explosion that is unworkable in the traditional scientific sense. "It's never only X and Y," Strong says.