What types of injuries occur over a long period of time from the overuse of one area of the body while playing a sport?

Chronic injuries usually result from overusing one area of the body while playing a sport or exercising over a long period of time. Example: pain when performing an activity, a dull ache when at rest and swelling.

Because the earth is not round ,but it may seem round when viewed from ,our planet but true some points earth is not round was an oblate spheroid -a square that it squashed as globe however is not even a perfect oblate spheroid.in fact isaac newton's first proposed that earth was not perfectly round but it was an oblate spheroid instead.that mean a square that is squashed as its poles and swollen at the

If you get a map and put the countries a states all together it forms all one piece you can also tell because of the earth quakes