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In today’s public health discourse, mental illness has gained significant prominence. Presently, mental illness is not only more prevalent but also more severe than previously acknowledged. The out dated notions of “toughening up” or “ignoring it” are no longer prevalent. Instead, individuals with mental health challenges also need a comparable level of urgency and attentiveness as one would receive for a physical injury.

So, before outlining the five most common psychiatric disorders, you must have a clear understanding of what psychiatric disorders are.

What Does Psychiatric Disorder Mean?

Psychiatry is the medical field dedicated to addressing mental, emotional, and behavioural disorders. Therefore, “psychiatric disorder” encompasses various issues that disrupt an individual’s thoughts, emotions, behaviour, or mood.

These conditions, also known as “mental illness” or “mental health conditions,” can significantly impact a person’s ability to function effectively in work, school or maintain healthy social connections. It is important to note that mental illness is not a sign of weakness but rather a medical condition.

Psychiatric disorders are treatable. However, the most suitable treatments may vary depending on the specific condition and the extent and severity of symptoms experienced by each person.

What Causes Mental Illness?

The causes of mental illness are many but not limited to a single cause. Instead, mental illness typically arises from brain chemistry, developmental experiences, and environmental influences.

Various factors work as common contributors to an increased risk of mental illness. These factors include:

  • Genetics: Mental illness often has a hereditary component. Individuals with a family history of mental illness are more susceptible to developing similar conditions. However, it’s important to note that genetics alone cannot fully explain all the risks associated with mental illness. Environmental factors can play a major role in developing psychiatric disorder.
  • Physical environment: The surroundings in which a person lives can impact their risk of mental illness. Residing in urban areas develops a higher likelihood of developing mental health disorders.
  • Social environment: Stressful life events can significantly impact mental health. These events can vary widely, but specific personal conflicts, such as being in an unhealthy relationship, are significant causes of anxiety and depression.

Five Most Common Mental Health Disorders

As mentioned earlier, several types of psychiatric disorders as identified by the best psychologist. Here are the five most common ones that affect most people today.

Anxiety Disorders

Anxiety disorders encompass a range of conditions characterised by intense fear or worry. This group includes generalised anxiety disorder, panic disorder, social anxiety, and other phobia-related anxieties.

Different types of anxiety disorders could have a common cause. These symptoms typically involve difficulties with concentration due to excessive worrying, experiencing fatigue and weakness, and persistently feeling nervous or fearful.

To diagnose a specific anxiety disorder, a mental health professional will assess the individual and collaborate with them to develop a treatment plan. Common treatment approaches for anxiety disorders include psychotherapy, medications, and complementary health techniques, such as stress reduction and relaxation techniques.


According to the best psychologist, primary indicators of depression are experiencing a persistent low mood and a diminished interest in previously enjoyable activities. These symptoms can often include additional emotional manifestations, including frequent tearfulness, irritability, and chronic fatigue. Changes in appetite, sleep disturbances, and difficulties with concentration and memory are also common.

Individuals with depression tend to have many negative thoughts and may feel guilt and worthlessness. Self-criticism and a lack of confidence are prevalent among those affected by this condition.

Bipolar Affective Disorder

Bipolar disorder involves alternating episodes of mania and depression, sometimes occurring consecutively and occasionally interspersed with periods of stabilised or “normal” mood. Manic episodes arise from heightened or irritable mood, increased activity levels, inflated self-esteem, and a decreased need for sleep.

Hypomania represents a less severe form of mania. Depressive episodes include intense sadness, hopelessness, low energy, and sleep difficulties. Psychiatrist treatment approaches for bipolar disorder often involve a combination of medication and psychosocial support to manage symptoms and promote stability.


Contrary to the misconception of being a singular disorder, dementia encompasses a diverse range of specific mental conditions. Individuals affected by dementia-related disorders typically encounter a deterioration in their cognitive abilities, often to an extent that hampers their daily functioning and independence.

Among the various conditions falling under this category, Alzheimer’s disease is the most prevalent case. This disease gradually erodes memory and cognitive abilities, eventually leading to an inability to perform even basic tasks. Additionally, there are other forms of dementia, including:

  • Parkinson’s disease
  • Frontotemporal dementia
  • Huntington’s disease
  • Wernicke-Korsakoff syndrome

Post-traumatic stress disorder

Both physical and psychological symptoms that may often follow a specific pattern of distressing or threatening events can lead to a common psychiatric disorder like PTSD or Post-Traumatic Stress Disorder. The most prevalent symptom of this disorder includes having intrusive and repeated distressing memories of a specific event.

There could also be instances where the affected person could have a feeling of reliving a traumatic event through nightmares or flashbacks. They can even experience physical reactions like excessive sweating and shaking.

In summary, the causes of mental illness are complex and involve a combination of factors, including genetics, physical environment, and social influences. Understanding these common mental disorders and factors can contribute to a more comprehensive approach to prevention, psychiatrist treatment, and support for individuals with mental health conditions.

Contact us today to schedule a consultation and learn how our team can guide you towards a successful and healthy mental health treatment.

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