"But as pain rises on the agenda for clinicians and patients, research is uncovering some unsettling facts about how it really affects people. First, not everyone experiences pain similarly. In experiments, women and black people have frequently shown lower pain tolerance when asked to do things like hold their hands in ice water. Gender differences in pain prevalence and intensity emerge in adolescence, and for reasons not fully understood, women are particularly vulnerable to conditions including migraines, back pain, and Fibromyalgia. Low-income Americans, too, are more likely to suffer pain than their high-income peers: They are likelier to be engaged in manual labor, to eat poorly, and to go to the doctor less often, to name just a few causes. Among pain patients, blacks and Hispanics are likelier to report their pain is severe."
You can read the entire article at Boston Globe's website.