I've been tracking everything about myself

It says he is 24.

I'll give you one small example. I started using a sleep tracking app on my iPhone because I have bad onset insomnia and don't sleep well. After one weeks use I noticed that the nights I went for a short 20 min walk before bed I had a much better sleep score. I also fell asleep faster.

Another thing I noticed was that I feel asleep faster if I didn't listen to music or podcasts. I've listened to them for years thinking it helped me fall asleep more quickly but using the app for a week I was able to prove that false. Obviously my data set it very small but the changes seem to be working.

If you collect data on lots of different things all of these small changes/improvements you make could add up to a noticeable difference in quality of life. The holy grail of course is software that can analyse all of these data points and recommend changes.

I like it. My big beef with it so far is that it looks like most of this stuff is input manually by Anand. (The 1200+ commits suggests that it's manual and not automatic.) I'm not anal enough to spend that kinda time tracking things. I have a Fitbit, a scale that i step on every day, Strava to track my runs, etc, but those are all things you just put on (or push a button) and forget about.

Things like climbing (which I also do) don't have automatic trackers, and tracking food intake is just too cumbersome these days for me to even try and keep up with that.

If there were better ways to automate these things and better APIs available to pull these things in automatically, I'd totally build something like this. I just don't have the time, inclination, or the energy to manually add the climbs, the calories, every food item, and myriad other things into the system.

So I'll say this: it's beautiful and full of very, very cool info. I just wouldn't do it myself unless I could generate all of that data. A handful of commits to build the site, and then let it update itself automatically via APIs. Granted, this means my site would be a bit less interesting, since the most interesting things on here are things you can't automatically track... but I'm working on plenty of other interesting things, and this just doesn't rate high enough on my list to do.

I'm jealous, though. Very well done.

You are right. From what I see apart from use for sports professionals or people for whom physical health matters too much ( livelihood ) they would make use of it the most.

But still gathering al this data religiously is good ( I haven't yet ) as sooner or later somebody will figure out how to use the data so well that it could ( algorithm / AI ) could determine what you should do today to reach a certain goal to stay healthy which you messed up a day before? For example, people who work out a lot and live on a diet, might some day indulge in something without really wanting to and all this data could tell how much ( theoretically ) will affect your health so what you should do today to make up for yesterday (?).

Think about this on much broader aspect, too much of something eventually is bad. Nobody is going to tell you forever to stop something until you stop, apps like this could gather data and at the end of a week/month/quarter could tell you your score and could rather calculate the risk of xxxx disease/illness which could happen because of your bad eating habits.

All this data could be synced with your medical file/with your doctor in order to keep tabs on your health and push personalised notifications of what and what not to do or just be cautious/warning.

I don't know if such thing really already exists or possible or even good but all this data could be tapped in and used much better way.

Oh and no clue why all this data should be social or public. IMO, it should be private and shared within family/concerned people.

In order to correlate with heath issues your going to need a standard to work from. Which makes collecting most of this info before 'fit-bit 12.0' or whatever somewhat pointless.

What exercise data can tell you is if your gaining or losing ground. So, if you do 10k in the same time but your heart rate is higher or lower that means something. But it's not going to correlate with a say a 1% increase of diabetes because we just don't run studies with that much detail yet.