Just thought this might keep something bad from happening to someone else.I just returned from a 7-day hospital stay, due to inactivity "sitting still to long" I had two blood clots move from my legs thru my heart and into my lungs, most people don't live to tell about it, more people die each year from this than cancer and aids combined, make yourself get up at 15-minute intervals and take a short walk it can save your life.If you make it thru the clot moving then it takes from 2-months to 1-year to totally recover, please people don't make the mistake I did, set them alarms and get up and walk its worth it. After something like this happens it will really change your priorities.