Dopamine also known as the happy hormone is naturally occurring chemical in the human body. It is also a neurotransmitter that controls movements and emotional responses. It also influences mood memory sleep and cognitive ability. Any deficiency can therefore be detrimental for health. It can lead to many disorders including anxiety depression and Parkinson's disease. Therefore this hormone is essential for overall wellbeing. According to a study at the Medical University of Vienna serious health problems can arise if there is too little or too much dopamine in your body. If you have a deficiency it can lead to Parkinson's