Occasional anxiety is a normal part of life. Both fear and anxiety are normal adaptive responses to potentially dangerous situations. They make us better prepared to survive a danger, either through fight, flight or freezing responses, as the situation may warrant. Anxiety disorders are more than everyday worry or stress and are among the most prevalent psychiatric conditions worldwide. In those with anxiety disorders, anxiety is excessive, maladaptive and disabling and can worsen with time. Symptoms of anxiety include nervousness and panic, along with physical symptoms such as sweating and heart palpitations.
Anxiety disorders include generalised anxiety disorder, social anxiety disorder, panic disorder and separation anxiety disorder.