Why Do We Stretch When We Are Tired?

Answer

We stretch when we are tired because stretching increases or boosts the length of the relaxed muscles. In addition, we stretch because stretching increases the blood flow to the muscles, thus improving the blood circulation.
Q&A Related to "Why Do We Stretch When We Are Tired"
It's almost an involuntary thing. You feel the need to
http://www.chacha.com/question/why-do-humans-stret...
Muscles do a lot of work even when the body isn't moving. Muscle fibers are continually contracting and releasing. Just standing still is a dynamic action, not a static one, even
http://www.quora.com/Why-do-we-feel-tired-after-tr...
well when your leg twitches in bed it is to make sure it is still working so maybe stretching it to make sure your muscles are working properly?
http://answers.yahoo.com/question/index?qid=200806...
we stretch to losen up our muscles. And to prevent strain injury during the day. Also to enable us to be more felxible.
http://wiki.answers.com/Q/Why_do_we_stretch_before...
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