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When stressed, there are various associated physical, emotional and
behavioural symptoms. Physically, the body produces higher levels of
chemicals that prepare it to 'fight or flight' - a throw-back to cave
dwelling ancestors who were faced with life-threatening danger. During
a stressful situation, the body attempts to cope by releasing
adrenaline, noradrenaline and cortisol. These chemicals cause various
physical reactions such as muscle tension, heightened senses, rapid
breathing and increased heart rate.
If stress is prolonged, a build up of these chemicals causes physical
and mental problems. People suffering with stress can experience
headaches, digestion problems, tiredness, fatigue, nausea, muscle
spasms and sleep loss. Long-term, these problems can develop into
heart attacks, strokes and impotence. Emotional problems from
excessive stress such as fear, anxiety and depression can worsen
physical symptoms making people even more stressed.
Behavioural problems associated with stress can include withdrawal
from social situations and indecisiveness. Stress can cause
irritability and tearfulness as well as making people aggressive both
verbally and physically. Stress can also affect sexual habits and
activity.
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