Stigma attached to mental health

The stigma attached to mental health issues is very prevalent in today's society, and more so in the workplace, employees feel comfortable with illness if its the flu or vomiting, or migraine, but when it comes to mental health issues, people are more inclined to keep quite about it, as they don't want to be seen as mentally ill, in any way. According to an article in times online a survey was carried out by a national charity, 'Shaw Trust' on thousand people and it found that "18.3% would not reveal a condition to their HR dept, and only 17.9% would reveal an illness to a colleague".