There's a few things that will help: 1. Run slower. Then run slower again. 2. Run a shorter distance/time and gradually build up over time (weeks/months). 3.

There's a few things that will help: 1. Run slower. Then run slower again. 2. Run a shorter distance/time and gradually build up over time (weeks/months). 3. Lose weight (on average, people are overweight). If you're underweight, then eat more.