(2) Modern people's health includes: physical health, mental health, mental health, social health, intellectual health, moral health, environmental health and so on. A healthy lifestyle includes a happy mood, a positive attitude and good interpersonal relationships, so choose A. 。
(3) Health refers to a good state of physical, psychological and social adaptation, not just the absence of disease and infirmity. In recent years, the World Health Organization has also brought moral cultivation and reproductive quality into the health category. The core of adolescent mental health is a happy mood.
(4) Regulating one's emotions can be summarized as: 1. Distract sb. 2. vent yourself; 3. comfort yourself. When you are in a bad mood, consciously change the subject, or do something else, such as listening to music, watching TV, playing ball, playing chess, going out for a run, etc. To distract yourself and ease your mood.
(5) Loneliness will increase your troubles. Don't keep the pain in your heart. Tell your good friend about your grievance, or call your friend. This will keep your body and mind in a positive and healthy state, so choose A.
So the answer is: (1) social adaptation; (2) A; (3)D； (4) a; (5) answer.