how do mental changes in elderly affect their social relationship?
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By preventing them from being able to properly sociallize.

Explanation:

I'm no expert but from my understanding... As we age, things become harder to do. Often times we are taking less infomation in. We are unable to understand, to remember, and to pay attention as well as we use to in our youth. Which can give little opprintunities to form any social relationships.

no, because those are both different running competitions. while distance runners train their legs and their lungs to run long amounts of time, the sprinters are training their legs and their lungs to give all they have in the little amount of area they need to cover. the brain also plays a huge part in all of this.

the brain is the only thing in your body that sends messages to your body telling you to run. if you are a long distance runner and you have the mind set of a sprinter, you will not get anywhere. if you have a long distance mind set and you have to run 200m in 20 seconds then you will not make it in time.