Not sure if any of you have already seen this site, but I found it quite amusing. It uses facial recognition to guess how old you are, all you need to do is upload a photo; http://how-old.net I tried two photos - the first was taken about six years ago when I was morbidly obese. The site guessed my age at 36, when in fact I was 24. The other phone I tried was taken this morning, and the site guessed my age at 25. Apparently, being overweight really does age you artificially.