Mental health refers to an individual's intellectual and emotional well-being and ability to function in society. It involves perceiving reality accurately, coping with challenges, and developing strategies for living. Emotional health is a component of mental health that focuses on dealing constructively with situations regardless of circumstances. A healthy mind is characterized by dealing with reality, accepting oneself independently of outside factors, functioning autonomously, enjoying simple pleasures, being open to new ideas and intimacy, and experiencing a full range of emotions. Factors that affect mental health include heredity, environment, background, personality, biochemistry, and physical illness.