Collapsing during strenuous activity is typically heart failure in my experience.
It happens all the time up here in Canada when people shovel snow.
It happens all the time up here in Canada when people shovel snow.
"It was nice to know all that but I did wonder: Was I killing myself? Fortunately I could find out. A few months before my butter discovery, I had gotten a “heart scan” – a tomographic x-ray of my circulatory system. These scans are summarized by an Agatston score, a measure of calcification. Your Agatston score is the best predictor of whether you will have a heart attack in the next few years. After a year of eating a half stick of butter every day, I got a second heart scan. Remarkably, my Agatston score had improved (= less calcification), which is rare. Apparently my risk of a heart attack had gone down."
(quick edit) It's profoundly sad to watch http://quantifiedself.com/2010/09/seth-roberts-on-arithmetic... all the way through as a result of this story. It's complicated... maybe it's a failure of medicine, of medical care delivery, education, etc but a room full of educated people laughing off the comments by that person warning of artherosclerosis/stroke and Robert's responses... it's just not a good sign.