Putting your feet up for 20 minutes a day is good for your body. To do this, just lie down and place your feet vertically and completely tangential to the wall and hold up. This eliminates fluid retention and blood circulation, which is usually difficult to do due to gravity.
Research shows that this improves blood circulation in the body and eliminates leg swelling.
This method is great for those who are less active or sit in a chair a lot during the day.