When it comes to exercise, there's one excuse I hear more often than any other: "I simply don't have time to exercise today!"
There might be days when this is true, but it can't be true every single day. Be honest with yourself. If you have time to watch a television program or play an online game, you do indeed have time for exercise.
But there is some good news for those of you who really are too busy to exercise on most days. A study published in the journal PLoS ONE found that 12 minutes of exercise weekly is all you really need to stay fit.
Participants in the study were overweight, but otherwise healthy men, who were split into two groups. Both groups exercised vigorously three times a week, but half of the participants exercised for only four minutes each time, while the other half exercised for 16 minutes each time.
Guess who performed better on fitness tests? Are you sitting down? Many of the results were similar.
For the rest of the story: http://www.livescience.com/37213-exercise-weekly-tips.html