http://www.kolumnmagazine.com/2017/01/09/seeks-black-men-teach-philly-beyond-philly-com/

https://m.facebook.com/story.php?story_fbid=981753728626067&id=121768594624589

https://www.washingtonpost.com/news/to-your-health/wp/2016/07/27/study-suggests-new-formula-for-physical-activity-8-hours-of-sitting-means-1-hour-of-exercise/?utm_term=.ebdefea5f0a0