How are you supposed to run with the wolves come night if you've spent all day sparring with the puppies?
Science & History 5 Things You Can Do Right Now to Become Instantly Smarter e don't guarantee that these will work for you -- all we can say is that smarter people than us have gotten them to work under scientifically controlled conditions.
Sports The 5 Most Horrifying Sports Injuries of All Time Clearly, these guys are really, truly insane.
Science & History 6 Tiny Things Doctors Do That Can Save (Or End) Your Life It turns out the world is full of zero-cost solutions that save lives. It's just a matter of convincing people to use them.