"Worth" doing is situational but, assuming you have the personal resources to spare and the interest in doing so, grabbing some snapshots in time might be usefu

"Worth" doing is situational but, assuming you have the personal resources to spare and the interest in doing so, grabbing some snapshots in time might be useful to you in the future. That said, I'm fairly sure it would not have good ROI to do that as a broad public health measure. I'm more assuming we're talking about a 40-something affluent tech worker who has all the basic needs of life already well-covered and is up for spending time and a few thousand dollars which may well be wasted. It's not so much that "new" tests are incoming, it's that last time I checked, a really large, thorough lab had a menu of over 900 different blood tests they could run. Just for grins, I did Select All and it would be several thousand dollars to run them all (plus who knows how many gallons of blood draws over time). To me the point is if, in the future, you have a new reason (symptom or indicator) to look at one specific test, if your immediate test shows positive you could go back and run that specific test on earlier samples to establish a baseline or perhaps even a progression rate (assuming it is a chronic condition which develops gradually over time).