Lena Dunham has posted the best mirror selfie of all time, explaining that her motivation to exercise is her mental health.
In the photo's caption, Lena says that although she knows it's "mad annoying" when people tell you to exercise, she now understands how helpful it can be for people struggling with anxiety, OCD and depression.
Lena also thanks personal trainer Tracy Anderson for "showing her the light", finishing the caption with a hashtag highlighting that the post wasn't sponsored.
Keep up the good work, Lena!
