A lot of people when running or jogging land with somewhat of a thud on their feet. This is not good as stomping of your knees will only end up injuring your knees. Thus, you need to be careful when jogging and move softly.
When jogging and landing, you should be able to land softly. It usual is more beneficial when you land on the balls of your feet. The importance of this I'd that the shock doesn't affect you or your knees at that time or in the long run.
In addition to this, the less effect it has on your knees, the more you are able to remain steadfast. Thus, you are able to increase your jogging duration and remain enduring over longer periods.