What better way to record the passage of time than by taking a picture of yourself every single day?

With smart phones, it's become pretty easy to do just that.

This kid decided to take a picture of himself every day from ages 12 to 19 years old. He then strung them all together in a 90-second slide show and posted it to YouTube recently.

It's pretty crazy how much he changed during those seven years!

Source: Free Beer & Hot Wings