What pull factors brought people to the west? explain

During the Westward Expansion there were some push and pull factors. Some pull factors were that there had been a few opportunities and not enough jobs for people, pushing them to move west. There was a bad economy and many displaced people. There were some pull factors that gave people many reasons to move westward.

is there multiple

health care plans in the united states having high costs because they are focusing on providing quality programs for different groups of individuals. the quality of the service is based on money flow received from the members. without this investment, couldn't be possible a constant scientific searching to prevent death and illness caused because of low levels of health investigation. currently, the complaints are not about the highest cost, but about the coverage and benefits to access the necessary health services required by the members.  

besides, if a global health system is established the quality levels will fall down because of the standardized of the health. the access to care will increase but the quality will be low because it depends on the money invested.