Aging is a funny thing. We get smarter and wiser, but our bodies don’t always work the way they used to. And at some point we’re expected to acknowledge that our favorite things—running, lifting heavy weights, swimming in the open ocean—are too risky. Our bones are too brittle, and our loved ones are too worried.

That’s the basic premise of this moving video:A fictitious marathoner struggles to come to terms with how his body and mind are deteriorating while living in a retirement home. Eugene Merher, a German film student, created the 100-second mock advertisement for class, but after watching, we’d be surprised if we don’t see this on TV soon.