Sleeping is an act that we do every day with total ease . But for some people, sleeping becomes a difficult situation, because, during the night, their disorders surface, some of them extremely serious.

The manipulator has astonishing skill, a sophisticated, almost infallible actuation mechanism . He knows how to influence us, he knows what pieces to play, what to say and what to keep quiet to achieve full control over our emotions. Recognizing their techniques and tricks in time can save us from situations of great personal exhaustion and...

According to Harvard psychologist and author of The Sociopath Next Door , Martha Stout, one in 25 people is a sociopath . This can represent a real problem for today's society.