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UNDERSTANDING STRESS |
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The Fight or Flight Response (Nature's own way of preparing us for facing dangers) The in-built protective mechanism of body : When ever there is a danger signal the in-built protective mechanism of our body called the 'Stress-alert system' is put on. In this there are a series of sympathetic & other reactions in the body to face the danger in a concerted way. The response brought about by this alert-system is called the ‘fight or flight response’. The stress-alert system : When the danger signal reaches our brain, then in a split second it is sent to the rest of our body through its various networks. The message goes to two channels :- 1. To the voluntary nervous system, which directs our skeletal system to contract, we thus get the feeling of churning of legs etc. With about 1,030 seperate skeletal muscles in our body - almost half our body weight, that’s a lot of tension. Responses like clenching of fists etc are seen to face the threat, or the body gets ready to retreat. 2. To the autonomic nervous system, that which controls all the involuntary functions of our body. The autonomic system, on it’s part has two subdivisions. The Sympathetic Nervous System ( SNS) and the Parasympathetic Nervous System (PNS), which are the fire alarm and the calming down mechanism of the body respectively. (a) The SNS commands release of various hormones in the body - adrenaline, noradrenaline, glucocorticoids etcthrough our various endocrine glands, like the pituitary, adrenal etc. Together these hormones increase our heartbeats & blood pressure at times by 100 % (to increase the blood supply), breathing becomes faster (to increase the intake of oxygen), throat muscles and nostrils open wider, pupils dilate and eyes alertly stare. The hormones stop the secretion of saliva & mucus, and the process of digestion temporarily halts (conserving precious energy). Sugar is released from liver (for instant energy), subcutaneous fat is also released into the blood stream (for greater energy). More fat (cholestrol) is produced by the liver for fuel. Sweating increases thus decreasing the temprature of the body. (b) The PNS calms, relax’s & slows down the body. When the SNS is activated then for obvious reasons the PNS is inhibited simultaneously. In other words the brain shuts down its primary calming mechanism to force you to remain alert & ready to face the threat. It’s the longer periods of stress that creates problems : Short doses of such response has its own excitement value, it is in fact a blessing. If the danger is short-lived then the body quickly reverts back to its normal state through its PNS. But the problem comes when because some reason or the other the high level of stress-inducing hormones in the system continues. The normal functioning of heart, blood pressure etc continues to be affected. It is only then that the various physical, psychological & behavioural problems come which could make life a hell - literally. It is this aspect of stress which has to be warded off. |
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Links for other SwAtma's Stress Pages : Home Page , Introduction of SwAtma's HSM , Why a SM package? , Five Noble Truths of Stress , Stress Defined , Stress induced illness , Stress symptoms , Are you burning out ? , Stages of Stress , Know your stressors , Three 'Types' of people , Managing Stress - the Holistic way , Bhagwad Gita & Stress Management , OrganisingWorkshop , Photos / Reactions of our earlier Programs |
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