Marc Epstein, a veteran New York City teacher, describes a common phenomenon: the proliferation of junk food, which contributes to child obesity.

He recalls his own student days, when teachers absolutely prohibited chewing gum and snacks in the classroom.

In today’s schools, junk food is everywhere.

It’s bad for students, bad for discipline, and indicative of a society that refuses to set appropriate limits, allowing children to engage in harmful behaviors.