HEALTH & FITNESS
'(Kelly of the Clue Crew presents a chart.)  Before working out, try this excercise:  subtract your age from 220. Taking 60% and 80% of that number will give you the lower and upper end of your optimal <a href="http://www.j-archive.com/media/2009-03-25_DJ_28.jpg" target="_blank">this</a> for training'
your heart rate