So what can you do when you get emotionally flooded? (And even the most enlightened man gets flooded when he feels criticized or attacked.) The Heroes have three simple strategies that have been scientifically proven to reduce their heart rate. The first is to breathe and the second is to count to 10. Breathing and counting to 10 are ways of downregulating or self-soothing. When you take a deep breath you stimulate the vagus nerve, which in turn reduces your heart rate and lowers your blood pressure.