Do Subliminal Weight Loss Tapes Work?

Many years ago, I came across an ad for subliminal weight loss tapes. I was familiar with the concept of subliminal messages because I remembered a hotly contested issue about movie theaters using this technique to make you buy their popcorn. It was referred to as an unconscious perception, or perception without awareness, which allows your eyes to see something before your brain has time to process the message. I remembered being blown away by the way the mind could …