We all wake up some days in a bad mood, during the day we struggle to retrieve information from our memory, and many a times before we go to sleep we know there is really no motivation to even wake up next day. We all would have faced that villain in our life. Most of us don’t realise this change in us is often caused by brain’s reward system. Brain often looks for opportunities to reward us for doing various things and this reward is nothing but sheer happiness. Who doesn’t want to be happy? All our philosophers had lived and died advocating that happiness is all that is strive for in human life. It was too late when I realised that a natural chemical produced in my body can be of this big significance to my day. As always man’s quest to control and regulate continues even when it is our own natural chemical. This feel-good hormone often famously nick named as dopamine, has the capability to drive all the facets of human body from waking up to sex drive to good sleep. We o...