Hill repeats are an excellent way to build strength, improve speed, and build mental strength and confidence. Although hills come in all different lengths and degrees of incline, the basic concept of a hill repeat is usually the same - to kill you! (just kidding)
When doing bill repeats you run up the hill fast and then recover by jogging or walking down and then you turn around and run fast back up that same hill, over and over until you want to puke.... ok its not that bad, it just feels like it some times.
Can you guess what today it? Hill day :(