Child Our emotional, psychological, and social well-being are all part of our mental health. It has an impact on the way we think, feel, and act. It also influences how we deal with stress, interact with people, and make good decisions. 1 Mental health is vital at all stages of life, including childhood, adolescence, and maturity. Poor mental health and mental illness are not synonymous, despite the fact that the terms are frequently used interchangeably. A person's mental health can deteriorate without being diagnosed with a mental condition. Similarly, a person who has been diagnosed with a mental condition may go through periods of.