The Wonders of Interval Training

Oh man, interval training. I write of it with fondness. Also, with soreness.

My treadmill runs used to look something like this:

• 30 minutes at 6 miles per hour

...and that's it.

I used to get bored SO easily, and my 30-minute runs felt like they lasted hours. All I could think about was how the sweat was running into my eyes, and how my lungs felt like they were exploding, and how my legs felt like they were giving out.