Mental Health Research

Written by BetterHelp Editorial Team

75% of people

75% of people

About 75% of people who enter psychotherapy show some benefit from it. Psychotherapy has been shown to improve emotional and psychological well-being and is linked with positive changes in the brain and body. The benefits also include fewer sick days, less disability, fewer medical problems, and increased work satisfaction.1
1 American Psychiatric Association

970 million people

970 million people

Globally 12.6% of the world population experienced a mental health disorder in 2019.2
2 Environmental Health Perspectives

301 million people

301 million people

301 million people globally had an anxiety disorder in 2019.3
3 World Health Organization

46% of American adults

1 in 5 American adults

1 in 5 American adults will have a diagnosable mental health condition in any given year.4
4 The Substance Abuse and Mental Health Services Administration

Recently updated

RESEARCH ON

Agoraphobia
RESEARCH ON

Generalized Anxiety Disorder (GAD)
RESEARCH ON

Depression

Anxiety disorders

RESEARCH ON

Agoraphobia
RESEARCH ON

Anxiety Disorder Due To Another Medical Condition
RESEARCH ON

Panic Disorder
RESEARCH ON

Separation Anxiety Disorder
RESEARCH ON

Social Anxiety Disorder (Social Phobia)
RESEARCH ON

Specific Phobia

Behavioral disorders

RESEARCH ON

Suicidal Behavior Disorder
RESEARCH ON

Tobacco Withdrawal
RESEARCH ON

Tobacco-Related Disorders
RESEARCH ON

Trichotillomania (Hair-Pulling Disorder)

Disruptive, impulse-control, and conduct disorders

RESEARCH ON

Intermittent Explosive Disorder
RESEARCH ON

Kleptomania
RESEARCH ON

Male Hypoactive Sexual Desire Disorder
RESEARCH ON

Oppositional Defiant Disorder


RESEARCH ON

Pyromania

Dissociative disorders

RESEARCH ON

Depersonalization-Derealization Disorder
RESEARCH ON

Dissociative Amnesia
RESEARCH ON

Dissociative Identity Disorder

Eating disorders

RESEARCH ON

Anorexia Nervosa
RESEARCH ON

Avoidant/Restrictive Food Intake Disorder (ARFID)
RESEARCH ON

Bulimia Nervosa
RESEARCH ON

Binge Eating Disorder
RESEARCH ON

Pica

General psychological terms

RESEARCH ON

Phobia
RESEARCH ON

Psychosis

Mood disorders

RESEARCH ON

Bipolar And Related Disorder Due To Another Medical Condition
RESEARCH ON

Bipolar I Disorder (BP-I)
RESEARCH ON

Bipolar II Disorder (BP-II)
RESEARCH ON

Cyclothymic Disorder
RESEARCH ON

Depressive Disorder Due To Another Medical Condition
RESEARCH ON

Major Depressive Disorder
RESEARCH ON

Persistent Depressive Disorder (Dysthymia)
RESEARCH ON

Premenstrual Dysphoric Disorder

Neurodevelopmental disorders

RESEARCH ON

Attention-Deficit/Hyperactivity Disorder (ADHD)
RESEARCH ON

Autism Spectrum Disorder (ASD)
RESEARCH ON

Childhood-Onset Fluency Disorder (Stuttering)
RESEARCH ON

Intellectual Disability (Intellectual Developmental Disorder)
RESEARCH ON

Specific Learning Disorder
RESEARCH ON

Tourette’s Disorder

Obsessive-compulsive and related disorders

RESEARCH ON

Body Dysmorphic Disorder (BDD)
RESEARCH ON

Hoarding Disorder
RESEARCH ON

Obsessive-Compulsive Disorder (OCD)
RESEARCH ON

Obsessive-Compulsive Personality Disorder
RESEARCH ON

Obsessive-Compulsive And Related Disorder Due To Another Medical Condition

Other disorders

RESEARCH ON

Gender Dysphoria
RESEARCH ON

Nonsuicidal Self-Injury
RESEARCH ON

Delirium
RESEARCH ON

Other Specified Mental Disorder
RESEARCH ON

Unspecified Anxiety Disorder
RESEARCH ON

Unspecified Depressive Disorder
RESEARCH ON

Unspecified Dissociative Disorder
RESEARCH ON

Unspecified Feeding Or Eating Disorder
RESEARCH ON

Unspecified Insomnia Disorder
RESEARCH ON

Unspecified Mental Disorder
RESEARCH ON

Unspecified Mental Disorder Due To Another Medical Condition
RESEARCH ON

Unspecified Schizophrenia Spectrum And Other Psychotic Disorder
RESEARCH ON

Unspecified Trauma- And Stressor-Related Disorder

Paraphilic disorders

RESEARCH ON

Exhibitionistic Disorder
RESEARCH ON

Fetishistic Disorder
RESEARCH ON

Frotteuristic Disorder
RESEARCH ON

Transvestic Disorder
RESEARCH ON

Voyeuristic Disorder

Personality disorders

RESEARCH ON

Antisocial Personality Disorder
RESEARCH ON

Borderline Personality Disorder
RESEARCH ON

Dependent Personality Disorder
RESEARCH ON

Histrionic Personality Disorder
RESEARCH ON

Narcissistic Personality Disorder
RESEARCH ON

Paranoid Personality Disorder
RESEARCH ON

Schizoid Personality Disorder
RESEARCH ON

Schizotypal Personality Disorder

Psychotic disorders

RESEARCH ON

Brief Psychotic Disorder
RESEARCH ON

Delusional Disorder
RESEARCH ON

Psychotic Disorder Due To Another Medical Condition
RESEARCH ON

Schizoaffective Disorder
RESEARCH ON

Schizophrenia
RESEARCH ON

Schizophreniform Disorder

Sexual dysfunction

RESEARCH ON

Delayed Ejaculation
RESEARCH ON

Erectile Disorder
RESEARCH ON

Female Orgasmic Disorder
RESEARCH ON

Female Sexual Interest/Arousal Disorder
RESEARCH ON

Male Hypoactive Sexual Desire Disorder

Sleep-wake disorders

RESEARCH ON

Hypersomnolence Disorder
RESEARCH ON

Insomnia Disorder
RESEARCH ON

Narcolepsy

Somatic symptom and related disorders

RESEARCH ON

Conversion Disorder (Functional Neurological Symptom Disorder)
RESEARCH ON

Illness Anxiety Disorder
RESEARCH ON

Somatic Symptom Disorder (SSD)

Substance-related and addictive disorders

RESEARCH ON

Alcohol Intoxication
RESEARCH ON

Alcohol Use Disorder
RESEARCH ON

Alcohol Withdrawal
RESEARCH ON

Caffeine Intoxication
RESEARCH ON

Caffeine Use Disorder
RESEARCH ON

Caffeine Withdrawal
RESEARCH ON

Cannabis Intoxication
RESEARCH ON

Cannabis Use Disorder
RESEARCH ON

Cannabis Withdrawal
RESEARCH ON

Gambling Disorder
RESEARCH ON

Opioid Intoxication
RESEARCH ON

Opioid Use Disorder
RESEARCH ON

Opioid Withdrawal
RESEARCH ON

Phencyclidine Use Disorder
RESEARCH ON

Substance/Medication-Induced Anxiety Disorder
RESEARCH ON

Substance/Medication-Induced Bipolar And Related Disorders
RESEARCH ON

Substance/Medication-Induced Depressive Disorder
RESEARCH ON

Substance/Medication-Induced Major Or Mild Neurocognitive Disorder
RESEARCH ON

Substance/Medication-Induced Mental Disorders
RESEARCH ON

Substance/Medication-Induced Obsessive-Compulsive And Related Disorder
RESEARCH ON

Substance/Medication-Induced Psychotic Disorder
RESEARCH ON

Substance/Medication-Induced Sexual Dysfunction
RESEARCH ON

Substance/Medication-Induced Sleep Disorder

Therapeutic approaches

RESEARCH ON

Acceptance And Commitment Therapy
RESEARCH ON

Art Therapy
RESEARCH ON

Cognitive Behavioral Therapy (CBT)
RESEARCH ON

Dialectical Behavior Therapy (DBT)
RESEARCH ON

Family Systems Therapy
RESEARCH ON

Gestalt Therapy
RESEARCH ON

Humanistic Therapy
RESEARCH ON

Psychoanalytic Therapy
RESEARCH ON

Psychodynamic Therapy
RESEARCH ON

Rational Emotive Behavior Therapy
RESEARCH ON

Solution-Focused Brief Therapy
RESEARCH ON

Trauma-Focused Cognitive Behavior Therapy (TF-CBT)

Trauma and stressor-related disorders

RESEARCH ON

Acute Stress Disorder
RESEARCH ON

Adjustment Disorders
RESEARCH ON

Post-Traumatic Stress Disorder (PTSD)

Updated on May 16, 2024.
For additional help and support with your concerns
Speak with a licensed therapist
The information on this page is not intended to be a substitution for diagnosis, treatment, or informed professional advice. You should not take any action or avoid taking any action without consulting with a qualified mental health professional. For more information, please read our terms of use.