Feeling sluggish all the time?
Of course, the graph above has a flip side. If you aren't feeling sluggish, then perhaps you should see if you can donate blood. Often, the treatment for low hemoglobin levels is transfusion, which we can only do if there's enough donor blood available. The treatment is not only life-saving, but also quite dramatic with patients often bouncing back rather quickly from near-vegetables to healthy and active within hours. I'd argue that few, if any, procedures have a qualy-to-cost ratio this high. In terms of redistributing health, your blood is quite possibly more valuable than all the taxes you pay--although, "redistribution" isn't the right word because your own body will have regenerated all the lost blood by the end of the day, so that while you make someone else much better off, donating blood has negligible effects on yourself.