YouTuber Rebecca Brown was diagnosed with trichotillomania, an impulse control disorder commonly associated with anxiety, when she was 11.
Trichotillomania causes a compulsive need to pull out hair -- Rebecca pulls from her head.
For the past six-and-a-half years, from age 14 to 21, she has taken a photograph of herself every day, and has now compiled them into a montage. The physical transformation is mesmerizing to watch, but Rebecca leaves an important message for her viewers in the comments section. "Beauty is more than what we see with the eyes. People are more than their conditions. I am more than my hair and skin. This only shows my exterior, I hope that people will check out my videos to see more of the girl inside," she writes.
Watch the video above to witness Rebecca's transformation -- it definitely isn't just physical.