Fight or Flight

• 1)A stressful event occurs.

  ->The hypothalamus triggers activity in the sympathetic branch of the autonomous nervous system.

  2)The stress hormone adrenalin is released from the adrenal medulla into the bloodstream.

  ->Causes physiological changes (Pupil dilation, heart rate increases.)
• 3)Once the threat has passed, the parasympathetic branch of the A.N.S is activated and returns the body to it's original state. (The adrenal medulla realises noradrenalin.
• Changes that occur to our body

  Pupil dilation

  Bronchi relaxes

  Increased sweat production

  Increased muscle tension, heart rate

  Decreased salivation, digestion
• A03

  Limitation) Research lacks population validity and generalisability because most of the research has just studied male participants.

  
  

  Limitation) Research assumes that people always respond to stress by fighting or fleeing. Ignores individual differences.

  
  

  Strength) Its a useful way to deal with the types of danger and stress that we experienced long ago as cave people. However, the response has become overactive in response to non-life-threatening stressors which can be detrimental to our health.