Regularly monitoring my blood sugar with the home tests made a great difference:
- I learned how much of my mental state - alertness, fatigue, ability to concentrate - is related to blood sugar. Not all, but a lot.
- I learned that what I thought was low blood sugar, hypoglycemia, is more often than not high blood sugar, hyperglycemia.
OK, I admit it further: since I started tracking my blood sugar, I have gotten into Quantified Self / Personal Monitoring.
For manual tracking of ...probably too many things... I use KeepTrack on my Samsung Galaxy Player.
But its best when the tracking is done automatically. E.g. I splureged on the Withings wifi connected scale, http://www.withings.com/en/bodyscale, that uploads my weight to their website every time I weigh myself. Without me having to intervene.
I had hopes for MapMyHike, http://www.mapmyhike.com/. It's great when it works. But (1) the GPS on my Samung device is unreliable, at least where I live, an area with deep ravines and canyons and poor sky exposure, and (2) even tolerating the GPS fragility, the MapMyHike app is much slower than most other aps, and often loses data that it has promised to upload later.
I wish there was an aggregator for these cloud based tracking tools. I would like to see all of my stuff in one place.