we love mario armstrong. you want more cool tech, all you have to do is go to thun news.com/fall. >> do you know what stems are? most patients know very hit little about them until they need one. it's good to know your options and here is more. >> discovering that you have cardiovascular disease can be quite a shock. >> there is a lot of us out there that don't think we're at any risk, have any risk factors. but this could happen. and you know, it certainly did. so i just feel passionate about of their own, health care. >> knowing the right questions to ask can help you make an informed choice if you're having symptoms of cardiovascular disease. you specially want to know the risks and down sides. >> coronary stent procedures and coronary stent technology have come a long way. it's a very safe procedure these days, but does still have an inherent risk of about 1% given that it involves manipulating catheters. >> the good news is the latest technology can help prevent certain side effects that happened years a