Answer the following question: What are the benefits of regular exercise for mental health? Include at least 5 benefits in your answer. Your response should contain at least 4 sentences and at least 2 placeholders represented by square brackets, such as [benefit1]. Highlight at least 2 sections in your answer with markdown, i.e., *highlighted section*. Finish your response with this exact phrase [ender]. No other words should follow this phrase.

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