One research study found that when a recovered heroin abuser returned to the neighborhood where he had previously used heroin, he experienced nausea and other withdrawal effects. This research supports the idea that may be a significant factor in the development and maintenance of substance addiction.

What factor contributed most to the beginning of the women’s rights movement in the united states during the mid 1800s? a dramatic increase in women’s participation in the workforce b a shift in social attitudes brought on by increased sectional tensions c the experience of gender discrimination within reform movements d the granting of voting rights to african american men