I've been running for years now but for the last couple years now I have slowed down a bit and just ran 3-5 miles three times a week. However, recently I decedied that it would be fun to start running in some of the local 5ks agian. When I started doing some of my harder workouts I got really sore and it just didn't seem like I recovered as fast as a used to. So, I started taking some whey protein by us-spot after my hard workouts and it has really helped me recover better. Now my kids don't get to laugh at me quite as much and ask me why I am walking so funny the day after a hard run.