Emotional Health vs Mental Health: What’s the difference?
It is probably more about different choice of words, and the term ' emotional wellbeing' is usually used rather than 'emotional health'. Generally 'mental health' is more of a medical label, encompassing a wide range of difficulties, including but not restricted to mood disorders. But, the concept of mental health is used as a commonplace term generally to describe people's experiences of a wide range of difficulties or lack of difficulties. 'Emotional wellbeing' as the way in which can live in a way with a relative lack of distress, and, with some reference to ways to enable this, such as through talking about worries and stress and techniques for relaxation.
Where did you come across the idea of 'cognitive hygiene', as it is a term which I have never come across before, although I have heard of the term 'mental hygiene', which I believe is seen as a rather dated term as it has implications of 'cleanlliness', which raises questions. But, there is a big emphasis within the field of mental health care upon cognitive techniques to help people with their experience of difficulties, especially the cognitive behavioral approach to therapy. This is an approach, which includes looking at 'cognitions' or thoughts and how they impact on a person's wellbeing.
One important thing to bear in mind is that all these terms, are to some extent, ways of categorizing people's experiences arising within psychiatry. In the past, there was the tradition of antipsychiatry which looked at labels and diagnosis critically, viewing them as ways of defining what is seen as 'abnormal' and the political aspects of this. However, antipsychiatry is less popular because it could be seen as dismissive of the reality of the suffering of individuals' difficulties. Nevertheless, labels can be used as a way of stigmatising people, so it is important that they are not used in such a way, but in a way which enables people to refer to their experiences in a way which can enable them to access support and care.