Add to this frenzy of activity the fact that germs thrive in warm places. Not only does your smartphone generate its own heat, but it also gets some help from your own body heat by spending time in your hands and next to your mouth. Plus, not many people think to disinfect their phones. It's no wonder, then, that smartphones are prime breeding grounds for bacteria. Typical phones have more bacteria than your office workspace, and some have even more than a toilet seat. Now that's scarier than any chain-saw massacre or drowned girl crawling out of a TV.