We can say that emotions are lower-level responses occurring in the subcortical regions of the brain—the amygdala and the prefrontal cortices—creating biochemical reactions in your body and altering your physical state. Originally, they helped our species survive by producing quick reactions to threats. Emotional reactions are coded in our genes. In the workplace, an angry tone of voice from your boss represents for you a threat—triggering the fear of being fired. Emotions precede feelings, are physical, and instinctual. Because they are physical, they can be objectively measured by blood flow, brain activity, facial microexpressions, and body language. When you encounter a stranger, you may have a range of sensations such as curiosity or fear. When you give that stranger a name, it becomes a significant symbol of meaning. It is through this process that emotions become attached to every object in the universe. When some object is given a name, it not only becomes a thing, it also becomes something of meaning. Emotions establish our attitude toward reality and provide your drive for all of the life's pleasures. Additionally, these emotions are connected to our biological systems and are designed to alert us of danger, or to draw us to something pleasurable. Intense emotions such as the ones that help us survive a threat, are intense but temporary. They are far too stressful to our body. The constant stress would eventually lead to some very serious physical and mental ailments.