Anxiety disorders refer to a range of mental health conditions characterised by intense worry, fear, and tension that affect a person's daily life. These disorders tend to involve excessive reactions to various triggers or uncertainty. Common anxiety disorders include:

Generalised Anxiety Disorder: Characterised by persistent, excessive, and uncontrollable worry and tension in daily life. Individuals may feel constantly anxious even without a specific trigger.
Panic Disorder: Characterised by sudden and unexpected panic attacks. Because of the possibility of future attacks, people may go to great lengths to avoid them.
Social Anxiety Disorder (Social Phobia): Defined by excessive fear and avoidance of social situations or performance situations. Fear of negative evaluation by others can limit social interaction.
Obsessive-Compulsive Disorder (OCD): Characterised by intrusive thoughts (obsessions) and repetitive behaviours (compulsions) performed to suppress those thoughts. The person may carry out repetitive rituals to escape the thoughts or restore a sense of order.
Post-Traumatic Stress Disorder (PTSD): A disorder seen in people exposed to a serious traumatic event. They may struggle with memories of the trauma, nightmares, and heightened emotional arousal.
Separation Anxiety Disorder: Seen especially in children, this disorder involves excessive worry and fear about being separated from loved ones, characterised by attachment beyond what is typical.
Specific Phobias: A disorder involving intense and irrational fear of specific objects, situations, or activities — for example, fear of heights, flying, or insects.

These disorders can affect functioning and usually require treatment. Approaches may include psychotherapy, medication, relaxation techniques, and support groups. Treatment is tailored to the individual's condition and symptoms. Seeking professional help is an important step in managing these disorders.