What are the 7 Types of Mental Disorders?

The Seven Common Types of Mental Disorders: A detailed Insights

Mental health is as vital as physical health, yet most people are struggling to identify and understand common mental disorders. Understanding the signs of different mental health conditions is the first initiative towards healing. Mental illness creates difficulties in coping with relationships, work and social life.

Mental Disorders and Causes

Mental disorders are health conditions that impact thoughts, perceptions, behaviour or mood and cause distress. According to WHO, in 2019, over 970 million people throughout the world were suffering from mental disorders, especially depression and anxiety.   

Here are some risk factors causing mental health disorders, including:

• Using recreational drugs or alcohol
• Lack of nutrition
• Not having family members and friends as a support system
• Had experienced traumatic events
• Having chronic medical conditions like diabetes, cancer, etc
• Family history of psychological or behavioural disorders
• Having neurological conditions such as Alzheimer's disease  
• Having a traumatic brain injury
• Having sleeping disorders

7 Types of Mental Disorders

Here are the details of 7 major types of mental disorders that people must be aware of:

1. Anxiety Disorder

People with anxiety disorder might respond to certain situations or things with dread and fear.

• Prevalence: In 2019, around 301 million people, including 58 million children and adolescents from the population, were reported to suffer from anxiety disorder.
• Symptoms: Unexpected panic attacks, fear of being alone, social situations and losing control.

2. Depression

Depression is characterised by persistent sadness, loss of interest, and a lack of motivation affecting daily functioning.

• Prevalence: Around 280 million people, including 23 million children and adolescents, were reported to face depression in 2019.  
• Symptoms: Feeling irritable, sad, guilty and losing interest in daily activities, poor concentration, suicidal thoughts

3. Bipolar Disorder

Bipolar disorder is another mental condition that causes extreme mood swings, along with low feelings and emotional highs.

• Prevalence: Over 46 million people lived with bipolar disorder in 2019 throughout the world.
• Symptoms: loss of pleasure, mood swings, irritability, sleeping issues, increased self-esteem, reckless behaviour and distractibility

4. Post-Traumatic Stress Disorder

Post-Traumatic Stress Disorder (PTSD) is a mental health condition triggered by experiencing or witnessing a traumatic event, leading to ongoing emotional and psychological distress.

• Prevalence: Global lifetime prevalence of PTSD is estimated at approximately 3–4%, with higher rates in populations exposed to conflict, violence, or disasters.
• Symptoms: Intrusive memories, nightmares, flashbacks, avoidance of activities and people.

5. Schizophrenia

It is a chronic mental health disorder that affects a person's thinking, emotions, and behaviour, often causing delusions, hallucinations, and impaired functioning.

• Prevalence: It reportedly affects around 24 million people globally.
• Symptoms: Hallucinations, delusions, highly disorganised behaviour, unusual thinking, and negative thoughts

6. Obsessive-Compulsive Disorder (OCD)

Obsessive-Compulsive Disorder (OCD) is a mental health condition marked by a cycle of obsessions and compulsions. 

• Obsessions: Unwanted, intrusive thoughts, images, or urges that cause anxiety (e.g., fear of germs, doubts about safety, or disturbing thoughts).
• Compulsions: Repetitive behaviors or mental acts performed to reduce the anxiety caused by obsessions (e.g., excessive handwashing, checking locks, counting).

7. Eating Disorder

An eating disorder is a serious mental health condition characterised by abnormal eating habits that negatively impact a person's physical and emotional well-being.

• Prevalence: Approximately 70 million people in the world have experienced eating disorders.
• Symptoms: Unusual sweating, fatigue, dizziness, mood swings, and unexpected weight change.

Having an idea about the seven common types of mental disorders is essential for early intervention and effective support. Understanding their symptoms and causes helps reduce stigma and promote better mental health care. With awareness and compassion, individuals affected by these conditions can access the help they need to improve their quality of life and overall well-being.

Reader information: This article is intended for informational and educational purposes only. It does not constitute medical advice, diagnosis, or treatment. Mental health conditions vary widely among individuals, and the signs and symptoms described may not apply to everyone. Readers should not use this information as a substitute for professional medical or mental health care. If you or someone you know is experiencing mental health concerns, distress, or symptoms that interfere with daily life, it is strongly recommended to seek guidance from a qualified mental health professional or healthcare provider. 

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