It's mine, I got one of those Withings scales that syncs to your phone. It's pretty dope because you get a nice trend graph. Part of it is I like to collect data on myself. Hours slept, medical information, weight, time for commute in car (to calculate best way to go for shortest route on average and so forth), of course calories, depression on a scale 0-10, notes on what could contribute to those things (weight goes up can note haven't been eating great, depression worst maybe reminded myself i'll be forever alone), etc etc. It's really autistic, I have data on all kinds of things in my life.