According to the National Health and Nutrition Examination Survey, absolute and functional iron deficiency both affect a large percentage of adults in the US -- around 14% and 15%, respectively.

Investopedia / Matthew Collins A more sophisticated options strategy, the iron condor is a risk-defined way to profit from low volatility by selling an out-of-the-money (OTM) put spread and an OTM ...

Scott Olson / Getty Images You may have heard about iron condors, a popular option strategy used by professional money managers and individual investors. Let's begin by discussing what an iron ...