Lift first, then run

If your workout for the day calls for both weight training and cardio, you're better off saving the cardio for last. This popular approach came to be when people began stressing the importance of resistance training. Basically, holding off on the cardio until the second half of this workout ensures that you will have plenty of energy for the first half, which is when you're lifting. But, it turns out that there is another health reason to support why you should continue to workout in this order, and it has less to do with abs and more do with blood pressure.

A study at Kinki Welfare University in Hyogo, Japan revealed that jogging can counteract the spike in blood pressure caused by weight training. Researchers found that people who ran for twenty minutes after resistance training increased the elasticity of their arteries by 2 percent over those who performed their workout in reverse (i.e. cardio first, then resistance training).