A lot of research has been conducted into stress over the last hundred years. Some of the theories behind it are now settled and accepted; others are still being researched and debated. During this time, there seems to have been something approaching open warfare between competing theories and definitions: Views have been passionately held and aggressively defended.
What complicates this is that intuitively we all feel that we
know what stress is, as it is something we have all experienced. A definition
should therefore be obvious... except that it is not.
Definitions
Hans Selye was one of the founding fathers of stress research.
His view in 1956 was that "stress is not necessarily something bad – it
all depends on how you take it. The stress of exhilarating, creative successful
work is beneficial, while that of failure, humiliation or infection is
detrimental." Selye believed that the biochemical effects of stress would
be experienced irrespective of whether the situation was positive or negative.
Since then, a great deal of further research has been conducted,
and ideas have moved on. Stress is now viewed as a "bad thing", with
a range of harmful biochemical and long-term effects. These effects have rarely
been observed in positive situations.
The most commonly accepted definition of stress (mainly
attributed to Richard S Lazarus) is that stress is a condition or feeling
experienced when a person perceives that "demands exceed the personal and
social resources the individual is able to mobilize." In
short, it's what we feel when we think we've lost control of events.
This is the main definition used by this section of Mind Tools,
although we also recognize that there is an intertwined instinctive stress
response to unexpected events. The stress response inside us is therefore part
instinct and part to do with the way we think.
Fight-or-Flight
Some of the early research on stress (conducted by Walter Cannon
in 1932) established the existence of the well-known "fight-or-flight"
response. His work showed that when an organism experiences a shock orperceives
a threat, it quickly releases hormones that help it to survive.
In humans, as in other animals, these hormones help us to run
faster and fight harder. They increase heart rate and blood pressure,
delivering more oxygen and blood sugar to power important muscles. They
increase sweating in an effort to cool these muscles, and help them stay
efficient. They divert blood away from the skin to the core of our bodies, reducing
blood loss if we are damaged. As well as this, these hormones focus our
attention on the threat, to the exclusion of everything else. All of this
significantly improves our ability to survive life-threatening events.
Not only life-threatening events trigger this reaction: We
experience it almost any time we come across something unexpected or something
that frustrates our goals. When the threat is small, our response is small and
we often do not notice it among the many other distractions of a stressful
situation.
Unfortunately, this mobilization of the body for survival also
has negative consequences. In this state, we are excitable, anxious, jumpy and
irritable. This actually reduces our ability to work effectively with other
people. With trembling and a pounding heart, we can find it difficult to
execute precise, controlled skills. The intensity of our focus on survival
interferes with our ability to make fine judgments by drawing information from
many sources. We find ourselves more accident-prone and less able to make good
decisions.
There are very few situations in modern working life where this
response is useful. Most situations benefit from a calm, rational, controlled
and socially sensitive approach.
In the short term, we need to keep this fight-or-flight response
under control to be effective in our jobs. In the long term we need to keep it
under control to avoid problems of poor health and burnout.
Introducing Stress Management
There are very many proven skills that we can use to manage
stress. These help us to remain calm and effective in high pressure situations,
and help us avoid the problems of long term stress. In the rest of this section
of Mind Tools, we look at some important techniques in each of these three
groups.
It also discusses:
·
Long-term stress: The General Adaptation Syndrome and
Burnout.
·
The Integrated Stress Response.
·
Stress and Health.
·
Stress and its Affect on the Way We Think.
·
Pressure & Performance: Flow and the 'Inverted-U'.
Warning: Stress can cause severe health problems and, in extreme cases, can
cause death. While these stress management techniques have been shown to have a
positive effect on reducing stress, they are for guidance only, and readers
should take the advice of suitably qualified health professionals if they have
any concerns over stress-related illnesses or if stress is causing significant
or persistent unhappiness. Health professionals should also be consulted before
any major change in diet or levels of exercise.
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