Short Intervals

No matter how busy my schedule can be. I try to find a short workout in between even though it's just for 30 minutes or less. Decided to do running intervals today. Always doing long distance running won't help increase your time. There are times we'll have to find a day just to do intervals. Basically, sprint for a minute, then walk for a minute and repeat. This time I did it for every 50 meters I sprinted, then walk. Light posts are usually 50 meters apart, so that was my guide.