How Aspirin and Ibuprofen Actually Work Inside Your BodyCasey Chan6/28/12 2:00pm22EditPromoteGo to permalink Poppin' pills is a sorta magical, sorta scientific method in feeling better. When you get hurt? Pop pills. When you can't sleep? Pop pills. When you want to get high? Pop pills. But how do those tiny little capsules actually work? This video explains how aspirin and ibuprofen makes your body feel less pain.