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.
The British thought of the Native Americans as a problem from the start and felt that they should leave the land to the British. They did their best to kill them or drive them out of their native areas.The Spanish were even worse. They enslaved the Native Americans that they encountered.he British, on the other hand, developed two-way relationships with their local Native Americans. The tribes needed the British just as much as the British needed them, so it was a much more stable situation than the French. With the Spanish, the issue was also their relationship with the Indians.