Every week, a quarter of Americans take a painkiller that could be dampening our collective feelings of empathy. In a paper published online this week, scientists claim that acetaminophen, Tylenol’s main ingredient, makes people more likely to think that other people’s pain isn’t a big deal.
Congratulations, you injured yourself doing something active. Such things are liable to happen when you leave the couch. But the choice between Advil, Tylenol, aspirin, and so many other pills can be daunting. Here's what you should reach for, and when.