Question

what is mental fitness​

Answer 1

level of psychological well being or an absenc of mental illness-the state of someone who is functioning at a satisfactory level of emotional and behavioural adjusment.

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hope it helps!!

Answer 2

• Mental fitness is the state of psychological well being.  
• To achieve the perfect fitness level mental fitness is equally important like physical fitness.  
• Most of the time, we take care of our body but don’t pay attention to our mind.
• But there are times in life where mental strength is much needed rather than physical one.  
• There are lots of activities like meditation, exercise, spending time in some hobbies, maintaining levels of vitamins etc which increase mental strength.