Chemistry of Emotions - A Review

Human body coordinates through chemical signals released by the brain. Chemical signals play a majorrole in bio-regulatory reactions responsible for emotions. Emotions are complex chemical reactions innervous systemcharacterized by neurophysiologic changes associated with thoughts and behavioralresponses. On pinching, one can cry, skin becomes hot, heart beat increases and our brain desires to shoutout loud or hit something in return. We experience a sudden influx of physical and mental stimuli underlyinga basic emotion. A person experiences diverse emotions throughout the day that are helpful in learning,reasoning and creativity. Emotions are one the most central and pervasive aspects of human experience.Emotions motivate empathic and moral behavior and play a role in an individual’s sense of self. Whileemotions enrich human experience they can also cause dramatic disruptions of judgment and performance.Since ancient days psychiatrists have been cracking the brain process responsible for emotions. Greeks werethe first to find the link between the physical body and human emotional responses. Human brain is acomplex network that transmit information every second via neurons through chemicals calledneurotransmitters such as dopamine, serotonin etc. These chemicals essentially let the organs communicatewith each other and express the emotions such as anger and happiness. Analysis of hormones and theireffects on human behavior is a major contribution of biochemistry to the understanding of emotions andrelated behavior. In this article we are trying to provide an in-depth knowledge about chemistry of emotionwhich we experience every day.