Thomas holmes and richard rahe developed the social readjustment rating scale (srrs) to measure stress due to

Thomas holmes and richard rahe developed the social readjustment rating scale (srrs) to measure stress due to : major life changes
According to them, most people who are used to a certain life style often experience some sort of emotional shocks, especially if the major life changes happen during productive age and within a short period of time.

The total is c.32 asume is nation wide

The changes to agriculture in the united states since 1900 is that increased mechanization has increased food production, thereby increasing the need for labor. there has been an increased need for higher speeds of food production due the fact that the population in the united states continues to rise.