McDonald's

Policemen block an exit in Cologne's main railway station, where a man took a hostage in the early afternoon on October 15th, 2018, at Cologne Central Station in Cologne, Germany.

An evolutionary leftover makes it hard to convince people to shift to a vegetarian diet.

Researchers have long documented problems with McDonald's, but it wasn't until they began showing how the restaurants aimed at children and made people overweight that the American public paid attention.

Doctors discover how to use McDonald's-style emoticon marketing to quadruple healthy food choices.

A new study finds that eating fast food after a workout is just as good for you as a PowerBar.