At age 80 I had a heart attack caused by an 80% blockage of my LAD artery and had 2 stents inserted. I usually awalk about 3 miles each morning. The last hill near home is very steep. Before the stent I would have to walk very slowly and sometimes stop and rest or I would get very dizzy. Now I can continue to walk normally. I have seen several KZbin videos stating that some stents are being used that aren't necessary. While that may be true, for me the stent greatly improved my mobility.