Mental Health

Overview

Mental health refers to a person's emotional, psychological, and social wellbeing. It influences how we think and feel, how we handle stress, how we relate to other people, and the choices we make. Like physical health, mental health is part of everyone's life, it changes over time, and it can be supported and improved.

Good mental health does not mean never feeling sad, worried, or stressed; difficult emotions are a normal part of life. Instead, it means being able to cope with the ordinary stresses of life, function day to day, and maintain relationships. When emotional difficulties become persistent or overwhelming and interfere with daily life, they may indicate a mental health condition that can be helped with support and treatment. Mental health matters at every stage of life, from childhood through older age.

Signs to Watch For

Changes in mental health can show up in feelings, thoughts, and behavior. Possible signs that someone may be struggling include:

• Persistent sadness, low mood, or loss of interest in things they used to enjoy
• Excessive worry, fear, or feeling on edge much of the time
• Withdrawing from friends, family, or usual activities
• Big changes in sleep, appetite, or energy
• Difficulty concentrating or making decisions
• Feeling hopeless, worthless, or overwhelmed
• Increased use of alcohol or other substances to cope

If someone has thoughts of harming themselves or others, this is an emergency. Seek help immediately by contacting emergency services or a crisis line.

What Affects Mental Health

Many factors interact to shape mental health, and conditions usually arise from a combination rather than a single cause. Influences include:

• Life experiences: Stress, trauma, loss, abuse, or difficult relationships.
• Biological factors: Brain chemistry, genetics, and a family history of mental health conditions.
• Physical health: Long-term illness, pain, hormonal changes, and substance use.
• Social and environmental factors: Isolation, financial hardship, discrimination, and lack of support.

Recognizing these influences helps explain why mental health varies between people and over time, and why support often works best when it addresses several areas of life.

Risk Factors

• A personal or family history of mental health conditions
• Experiencing trauma, abuse, or major loss
• Long-term physical illness or chronic pain
• Ongoing stress, isolation, or financial difficulty
• Alcohol or other substance use
• Major life changes, including during pregnancy and after childbirth

Getting an Assessment

When emotional difficulties persist, a healthcare professional can help work out what is happening:

• Talking it through: A doctor or mental health professional asks about feelings, thoughts, behavior, sleep, and daily life.
• Questionnaires: Simple structured tools can help measure mood, anxiety, and other symptoms.
• Checking physical health: Ruling out physical conditions or medication effects that can affect mood and energy.

Seeking help is a sign of strength, and an assessment is the first step toward the right support or treatment.

Support and Treatment

Mental health conditions are common and treatable, and support comes in many forms:

• Talking therapies: Such as cognitive behavioral therapy and counseling, which help people understand and manage thoughts, feelings, and behavior.
• Medication: For some conditions, medicines prescribed and monitored by a doctor can help.
• Lifestyle and self-care: Regular activity, sleep, balanced nutrition, and connecting with others support wellbeing.
• Social support: Family, friends, support groups, and community resources.
• Crisis services: Urgent help is available for those in immediate distress.

The right combination depends on the person and the situation, and many people recover or learn to manage their condition well.

Supporting Your Mental Health

While not everything can be prevented, daily habits can protect and strengthen mental health:

• Stay connected with supportive people
• Be physically active and get enough sleep
• Eat a balanced diet and limit alcohol
• Make time for activities you enjoy and for rest
• Learn ways to manage stress, and ask for help early when struggling

When to Seek Help

Consider reaching out to a doctor or mental health professional if you or someone you care about has:

• Low mood, anxiety, or distress that lasts or interferes with daily life
• Big changes in sleep, appetite, energy, or behavior
• Difficulty coping, withdrawing, or increasing use of alcohol or substances

If there are thoughts of suicide or self-harm, or of harming others, this is an emergency. Contact emergency services or a crisis line right away, or go to the nearest emergency department. You do not have to cope alone, and help is available.

Related Topics

Frequently Asked Questions

References

1. National Institute of Mental Health (NIMH). Mental Health Information.
2. World Health Organization (WHO). Mental health.
3. Centers for Disease Control and Prevention (CDC). About Mental Health.
4. MedlinePlus, U.S. National Library of Medicine. Mental Health.