All sorts of rewards are built into our marvelous organic human computer, mind/body joining with our surroundings to produce wonder. Evolution gave us a reward when we smell a flower or eat a peach. And even when we get angry, anger/fear is part of the fight or flight response, so integral to survival. With all the over stimulation of our modern age, the reception becomes cloudy. Dopamine, the brain chemical that transports the reward stimulation runs low after a day of drinking high fructose pop and eating grease, salt, and sugar and playing violent video games. Not to mention injesting speed, cocaine, caffiene, booze, ritalin, and nicotine.   more »