It is a universal idea that leisure time is for recovering oneself from tiresomeness during works. While two mainstream ideas are that use leisure time for reading and doing puzzles to improve the mind or utter it for resting the mind, I think there is another possibility for using leisure time to both enhance mind power and rest the mind.
Those two mainstreams depended on what kind of their works. Numerous jobs require the majority of mind and improvement to accomplish the task, for example, accountant, physician, and engineer. People who work in this area need to relax their mind in their leisure time for they spent it on solving problems the whole time. Therefore, they may choose to do painting, running, or exercising which requires being activeness but not the mind criticize much.
On the other hand, some are required for energy and labor to achieve the task. For instance, construction workers and athletes. This group of people should spend their working time to keep their mind active. Then, it will be useful for them to read or do some puzzles in their relaxation time. for they can exercise their brain which they have less opportunity to do when they work.
Either being recreation by doing brain-lite activities or brain-active activities are beneficial for those who do it. In my opinion, leisure time could be used in activities that both increase mind power and can rest the tired mind. This kind of activity might come from understanding that what you would love to do and do it continuously. Since you do an activity you liked, you will not force yourself to do it, so you can rest your mind from enforcement. Also, you will hold a feeling that you want to know more about the activity, so naturally, you will study more by yourself which requires brain activeness to accomplish which means that you have improved your mind. 
It is a universal  
idea
 that  
leisure
  time
 is for recovering oneself from tiresomeness during works. While two mainstream  
ideas
 are that  
use
  leisure
  time
 for reading and doing puzzles to  
improve
 the  
mind
 or utter it for resting the  
mind
, I  
think
 there is  
another possibility
 for using  
leisure
  time
 to both enhance  
mind
 power and rest the mind.
Those two mainstreams depended on what kind of their works. Numerous jobs require the majority of  
mind
 and improvement to accomplish the task,  
for example
, accountant, physician, and engineer.  
People
 who work in this area need to relax their  
mind
 in their  
leisure
  time
 for they spent it on solving problems the whole  
time
.  
Therefore
, they may choose to  
do painting
, running, or exercising which requires being activeness  
but
 not the  
mind
 criticize much. 
On the other hand
,  
some
  are required
 for energy and labor to achieve the task.  
For instance
, construction workers and athletes. This group of  
people
 should spend their working  
time
 to  
keep
 their  
mind
 active. Then, it will be useful for them to read or do  
some
 puzzles in their relaxation  
time
.  
for
 they can exercise their brain which they have less opportunity to do when they work.
Either being recreation by doing brain-lite  
activities
 or brain-active  
activities
 are beneficial for those who do it. In my opinion,  
leisure
  time
 could be  
used
 in  
activities
 that both increase  
mind
 power and can rest the tired  
mind
. This kind of  
activity
 might  
come
 from understanding that what you would  
love
 to do and do it  
continuously
. Since you do an  
activity
 you liked, you will not force yourself to do it,  
so
 you can rest your  
mind
 from enforcement.  
Also
, you will hold a feeling that you want to know more about the  
activity
,  
so
  naturally
, you will study more by yourself which requires brain activeness to accomplish which means that you have  
improved
 your  
mind
.