**2. Mental health**

Mental health refers to cognitive and/or emotional well‐being. More concretely, it refers to how a person thinks, feels and behaves. Mental health can affect daily life, relationships, the ability to enjoy life and even physical health. Mental health involves finding a balance between life activities and efforts to achieve resilience. According to the World Health Organization (WHO) [1], mental health is 'a state of well‐being in which the individual realizes his or her own abilities, can cope with the normal stresses of life, can work productively and fruitfully, and is able to make a contribution to his or her community'. More concrete mental health includes different components of life; for example, in terms of relationships, having a good relationship with family and having supportive friends, with the ability to talk about feelings. For leisure time it is about having hobbies, doing exercises on regular basis and having regu‐ lar holidays. Furthermore, it is important to follow a healthy lifestyle that includes, having healthy eating habits, not smoking or drinking and not taking no‐prescribed drugs and at least being able to achieve some goals in life [2]. Mental health is not merely the absence of a mental disorder. It exists on a continuum to include flourishing mental health, very good mental health, mean mental health, decreased mental health, mental health problems and mental health disorders [3].
