Let's read a little story; Every morning in Africa , a gazelle wakes up. It knows it must outrun the fastest lion or it will be killed. Every morning in Africa , a lion wakes up. It knows that it must run faster than the slowest gazelle or it will starve. It doesnt matter whether you are a lion or a gazelle; when the sun comes up, you would better be running. Marathon training gives you endurance and strength in form of running.