your brain can let you down When you do a certain behavior you love, this system rewards you by activating the neural circuits associated with the sense of pleasure and thus motivating you to do it again. The reward or stimulus is a stray way to describe the positive value that an individual attributes to an object. The amount of reward and fun generated varies according to the type of effect. For example, the initial rewards relate to the survival of species, represented by food and sex. Secondary rewards include money and listening to music. Addiction is not very different because it generates a large amount of pleasure and psychological satisfaction of the person, which leads him to ask for more whether drug addiction or food or smoking or even Facebook; because it gives the wrong visual value to express the value of self most impressive or follow-up. I...