Nerve Compression. The compression of nerves after they leave the spinal cord can cause leg spasms. Spinal nerve compression can create conditions that affect the spinal column, such as osteoarthritis, spinal tumors and herniated disks, according to MayoClinic.com.
With diseases which Europeans brought unintentionally with them and  Native Americans didn't have any resistance to them.   More technologically advances weaponry, gunpow â¦ der using handguns,  and cannons.  Metals, like iron, which was unknown to the Native Americans, armor  made out of iron and steel.ith diseases which Europeans brought unintentionally with them and  Native Americans didn't have any resistance to them.   More technologically advances weaponry, gunpow â¦ der using handguns,  and cannons.
Field Test Edition Summer 2008 61 L ESSON P LANS Ice age and Americaâs Early Peoples Nonfiction Reading Lesson Plan Unit of StudyâEarly Encounters: Native Americans and Explorers The Teaching Points: â¢ New York was rich in resources in its early history. â¢ Native Americans were the first people to inhabit New York.ach group will represent one of the major European countries of exploration: England, Spain, France, Portuguese and Dutch. The groups will research and trace on a world map, the routes of exploration of the major explorers from the country and their points of contact with native peoples.