According to the burden of disease assessments conducted by the World Health Organization (WHO), mental illness, also known as neuropsychiatric conditions, accounts for the largest human burden of noncommunicable diseases at the global level, representing approximately 14 percent of disease burden in all categories. Mental health is a complex concept to define precisely. It generally refers to a person's state of emotional well-being and an absence/presence of neuroses or other psychiatric conditions. A holistic view includes a wider range of factors: multiple interacting biological, environmental, social, and psychological variables. For example, WHO defines good mental health as a state of well-being that signifies the ability to recognize individual abilities, cope with life's normal stresses, work productively, and contribute positively to society.

In addition to established definitions, ...

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