What Vietnam Taught Us About Breaking Bad Habits : Shots - Health Blog : NPR

U.S. soldiers at Long Binh base, northeast of Saigon, line up to give urine samples at a heroin detection center in June 1971, before departing for the U.S.

It’s a tradition as old as New Year’s: making resolutions. We will not smoke, or sojourn with the bucket of mint chocolate chip. In fact, we will resist sweets generally, including the bowl of M &Ms that our co-worker has helpfully positioned on the aisle corner of his desk. There will be exercise, and the learning of a new language.

It is resolved.

So what does science know about translating our resolve into actual changes in behavior? The answer to this question brings us — strangely enough — to a story about heroin use in Vietnam.

In May of 1971 two congressmen, Robert Steele from Connecticut and Morgan Murphy of Illinois, went to Vietnam for an official visit and returned with some extremely disturbing news: 15 percent of U.S. servicemen in Vietnam, they said, were actively addicted to heroin. READ MORE