I saw that article a few days back and got to thinking. Tylenol reduces inflammation all over the body. Makes sense that if the inflammation is reduced, you feel calmer. Advil does a similar thing. I always feel calmer after I take the Advil. My whole body relaxes I think just happy to not hurt so much? Yup. Overuse is bad though. Taking more to feel better better better, won't be good. My doctor tests my blood, liver, kidney function every few months to be sure I'm not damaging anything on long-tern dosing. I sure hope no one decides if 2 Tylenol is good that 10 would be better. Ohhhh. Danger Will Robinson...danger!