why is it difficult for some people to relax ?

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as far as I am concerned , there are usually two major reasons to explain?how come?it is difficult for some ones to relax , for real .

1st?they are having a hard time figuring out?the right way for themselves to unwind , which may sound a little bit hard to believe , however not every one has the same interest as others and how they can feel relaxed differs from one another , for example ,....

2nd?as for some ones , the?real life stress?faced by them is way too high?which leaves them little time to relax or have fun , especially a?middle aged?man who has a family to feed , he usually feels like sparing time to rest however he has endless job duty to do , for instance ,....

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what are the benefits of doing exercise ?

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as far as I can tell , there are usually two main benefits that can be gained out of exercise , for real .

1st?getting physically stronger is definitely something beneficial , as we all know?exercise or sport always has a way to make doers stronger , in the meantime exercise builds a healthy state of mind?for those who do it , for example ,....

2nd?doing exercises also creates an opportunity to befriend others and expand social circles?, when it comes to team exercise such as badminton or table tennis , people will be able to?know more about each other in the process , for instance ,.....