Human body has its own system of managing temporary stress through biochemical responses or release of stress hormones (cortisol and epinephrine) to boost one’s physical energy levels to manage the situation.
But, the body does not have the wherewithal to cope with chronic stress. If you are getting frequent headaches and bouts of cold or flu, persistent shoulder pain, irritability, reduced reflexes, sleep deprivation, then you should slow down your hectic daily schedule because all these are symptoms of chronic stress. See a good physician for medical help to reduce stress but a long holiday would be very much in order.
Exposure to chronic stress can trigger a series of biological and psychological changes in the metabolism, ultimately leaving one vulnerable to metabolic syndrome, depression, peptic ulcers and diabetes.