I think people need to learn about mental health.  Mental health is a level of psychological well-being
I completely agree. It's very important.
Cultural differences, subjective assessments, and other factors all effect how we see mental health
Yes I am sure in different cultures it is a taboo subject.
I was reading online,  According to the U.K. surgeon general (1999), mental health is the successful performance of mental function, resulting in productive activities, 
That's interesting.I think mental health is sometimes seen as silly.
Mental health
Mental health is the level of psychological well-being or an absence of mental illness. It is the state of someone who is "functioning at a satisfactory level of emotional and behavioural adjustment". From the perspectives of positive psychology or of holism, mental health may include an individual's ability to enjoy life, and to create a balance between life activities and efforts to achieve psychological resilience.
According to the World Health Organization (WHO), mental health includes "subjective well-being, perceived self
, one can speak metaphorically of a state of health of the mind, or mental health. Merriam-Webster defines mental health as "A state of emotional and psychological well-being in which an individual is able to use his or her cognitive and emotional capabilities, function in society, and meet the ordinary demands of everyday life." According to the World Health Organization (WHO), there is no one "official" definition of mental health. Cultural differences, subjective assessments, and competing professional theories all affect how