It's really easy and fun to use; I'm currently using it to learn Spanish. They have an iPhone app as well (that's what I'm using) and they have even more languages to learn (for free!) than are listed above. I highly recommend it.
Some inadvertent deaths are unavoidableâwrong place wrong time. But most aren't. Staying alive requires perceiving threat feeling dread and responding. Here's some tips you should know to stay alive in some dangerous situations.