Anxiety

What is anxiety?
Anxiety is something we all experience from time to time. Most people can relate to feeling tense, uncertain and, perhaps, fearful at the thought of sitting an exam, going into hospital, attending an interview or starting a new job.

You may worry about feeling uncomfortable, appearing foolish or how successful you will be. In turn, these worries can affect your sleep, appetite and ability to concentrate. If everything goes well, the anxiety will go away.

Short-term anxiety can be useful. Feeling nervous before an exam can make you feel more alert, and enhance your performance. However, if the feelings of anxiety overwhelm you, your ability to concentrate and do well may suffer.

The 'fight or flight' reflex
Anxiety and fear are actually important for survival because they act as a mechanism to protect the body against stress or danger. Anxiety and fear trigger the release of hormones, such as adrenalin. Adrenalin causes your heart to beat faster to carry blood where it's most needed. You breathe faster to provide the extra oxygen required for energy.

You sweat to prevent overheating. Your mouth may feel dry, as your digestive system slows down to allow more blood to be deflected to your muscles. Your senses become heightened and your brain becomes more alert. These changes enable the body to take action and protect itself in a dangerous situation, either by running away or fighting a foe.

It is known as the fight or flight reaction. Once the danger has passed, other hormones are released, which may cause you to shake as your muscles start to relax. 

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