Add Yahoo as a preferred source to see more of our stories on Google. I tried exhausting workouts, sleep meditations, and everything in between to no avail. After a month of this, I had a conversation ...

For over a decade, this image-based technique has helped people switch off their busy brains and fall asleep at night. How exactly does it play upon the mind?

(CNN) — When Dr. Luc Beaudoin was an undergraduate student nearly 40 years ago, he often had trouble falling asleep on Sunday nights and was eager to find a solution. “I thought to myself: If I can ...