The book highlights how changing your internal mental and emotional state can signal new genes in new ways, modifying genetic expression without altering the DNA sequence.
The title of the book, El Placebo Eres Tu , reflects the book's central thesis: you are the active ingredient . Your thoughts, emotions, and beliefs activate a cascade of physiological reactions in your body. Dispenza posits that if a fake pill can change biology, then the internal state of the individual is the true mechanism of change. He argues that we don't need the pill; we need the belief that the pill represents.