What are the effects of prolonged social isolation on mental health, and how can it be mitigated? Your response should contain at least 5 sentences. Highlight at least 2 sections in your answer with markdown, i.e. *highlighted section*. Include keywords *isolation, mental health, coping strategies, support systems, therapy* in the response. At the end of your response, please explicitly add a postscript starting with P.S.

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