That's a neat idea. I used to keep an incentive spirometer on my desk and use it throughout the day on the theory that "exercise" would improve my breathing.

That's a neat idea. I used to keep an incentive spirometer on my desk and use it throughout the day on the theory that "exercise" would improve my breathing. I noticed a lot of improvement at first, probably more due to my understanding how to use/game the spirometer, and then not much improvement after that. Never thought about measuring other things (like blood pressure) with it. Now I'm going to get one of these things!