I went down a rabbit hole trying to understand some health issues, and I ended up with an idea for a study that involves Espresso and heart disease risks that would be relatively easy to perform and could help make more informed health decisions. My journey (and this is only one tiny aspect, I've been thinking about this a lot) started a bit more than a year ago when I got a blood test as part of a health checkup that contained some concerning values, notably high glucose and high LDL.

LDL is a major risk factor for heart disease. (It isn't the best value to predict heart disease risk, that is ApoB. But unfortunately, standard medical practice hasn't adopted this yet.)
So my high LDL is... not good. Unfortunately, the effect of lifestyle changes on LDL is limited, and my risk is still far away from what would receive medication. (Some doctors think that far more people should receive medication, which I find a very interesting debate, but that's another story.)