The role of emotional state play in physical health is:
The link between the stress and the physical health involves mainly f colds which are directly related to the nervous system. The stress cause overall vulnerability to the disease by adjusting or compromising to functioning of immune system. The nervous system and immune system communicate in the ways to be understood. The evidence tends to grow; the brain influences the immune system and the immune system influence the brain.
Person behaviour and psychological states effect the functioning of immune system and the immune system also influences existing mental state and behavioural dispositions. This is process takes place with the affecting of blood vessels of circulating neurochemicals which in turn helps in modifying the brain state. The negative emotions are produced like depression, anxiety and anger which lead to poor health of the individual.