Health·Posted on Jan 26, 201615 Charts That'll Only Mean Something To People Who Love RunningThey say "obsessed" like it's a bad thing.by Sally TamarkinBuzzFeed StaffLinkFacebookPinterestTwitterMail 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15.