Library of mental health conditions, disorders, and terms
Explore comprehensive clinical information on mental health conditions and terms. Gain insights into relevant research findings, common diagnoses, symptoms, and treatments, including psychotherapy.
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Therapy's impact
In 2019, 12.6% of the world's population was living with a mental health disorder. Seeking therapy can improve mental health, and 75% of all people who attend psychotherapy report mental health benefits.

Aaron Dutil
LMHC, LPC

Lauren Fawley
LPC

Majesty Purvis
LCMHC

Arianna Williams
LPC, CCTP

Dr. Daniel Sarmiento
MD

Karen Foster
LPC
Our clinical team
The Editorial Team aims to follow BetterHelp’s therapeutic editorial guidelines on mental health, which draw on the latest DSM-5 manual — the same mental health guidelines therapists in the US use. All mental health articles undergo a multi-step writing, editing, and reviewing process.
Our process

Our articles are written by mental health advocates and researchers in the mental health space

Each article is medically reviewed by a licensed mental health therapist

Articles are updated to reflect the latest mental health information
Current research
Mental Health
Mental health may affect how people think, feel, and act, playing a significant role at every stage of life, from childhood and adolescence through adulthood. Mental health means more than the absence of disorders; it’s an integral part of overall health and well-being. It encompasses a range of cognitive, emotional, and social capacities, such as learning, forming and maintaining relationships, and handling stress and adversity.
What is mental health?
Mental health is the composite of our emotional, psychological, and social well-being, and it’s significant to how we’re able to lead a meaningful and happy life.
Good mental health may be characterized by how we learn, feel, express, and manage emotions and form and maintain relationships with others. It is deeply interconnected with physical health, and caring for one often involves caring for the other.
Importance
According to the WHO, mental health is a major component of overall health and well-being.
Scientifically, mental health encompasses a range of cognitive, emotional, and social capacities. It involves the measure of brain processes that enable positive emotional regulation, successful coping strategies, logical reasoning, and adaptive social interactions.
Research has consistently demonstrated the profound interconnectedness of mental and physical health. Conversely, poor mental health can negatively impact physical health, increasing the risk of some conditions. Neuroscientific studies have illuminated how mental health is tied to the structure and function of our brains and how factors like stress can alter brain chemistry and neural pathways.
Effects
Mental health significantly influences various aspects of an individual's life, including physical health, social relationships, and overall quality of life. Scientifically, caring for our health is associated with a range of positive outcomes. For example, research has shown that individuals with good mental health are likely to have stronger immune systems, lower blood pressure, and longer lifespans.
Compromised mental health can have effects that extend beyond the individual. For instance, people with mental health conditions might have challenges when forming and maintaining relationships.
Mental health conditions
According to the World Health Organization, mental health conditions are common, with more than one in four people likely to develop one at some point. Learning how to approach mental health conditions with empathy and understanding can be a valuable skill. People experiencing struggles aren’t defined by their diagnoses. They’re just as complex and multi-dimensional as anyone else. Most individuals who have conditions can learn how to manage symptoms that may be negatively impacting their lives with appropriate treatment and support.
Addressing conditions isn’t solely the individual's responsibility in a broader societal context. It requires a comprehensive public health approach that includes education, prevention, early intervention, and the availability of high-quality healthcare services. This perspective emphasizes the role of community and societal support in fostering mental well-being for all.
Improving mental health
Improving health is a proactive and empowering endeavor, and there are evidence-based strategies that individuals can adopt to enhance their emotional and psychological well-being alongside health services. Regular physical activity is also important.
Nutrition also plays a significant role. A balanced, nutrient-rich meal profile that includes a variety of fruits, vegetables, lean proteins, and whole grains can have profound effects on brain function and mood. Omega-3 fatty acids in fish, walnuts, flaxseeds, and B vitamins can be particularly beneficial. Additionally, engaging in mindfulness practices, such as meditation or yoga, can help reduce stress levels and improve mental clarity and focus. These practices have been shown in numerous studies to reduce symptoms of anxiety and depression.
Mental health statistics
Mental health disorders are a prevalent and significant concern in the United States, affecting a substantial portion of the population across various age groups. According to the National Institute of Mental Health Disorders, an estimated 26% of Americans ages 18 and older, that’s about 1 in 4 adults, struggle with a diagnosable disorder in a given year.
For those with thoughts of suicide, call or text the 988 Suicide & Crisis Lifeline at 988. Please also see our Get Help Now page for more immediate resources.
For those struggling with substance use, contact the SAMHSA National Helpline at (800) 662-4357 to receive support and resources on various health topics. Support is available 24/7.
Get help
Treatment and effective health services are available from a wide range of sources to support individuals with health conditions and health problems. For example, online platforms like BetterHelp can connect individuals with health professionals from a wide range of educational backgrounds. These professionals have years of experience and can help you care for your health.