Natalie Shoemaker, ‘Study: Poverty Causes Physical Pain’, http://bigthink.com/natalie-shoemaker/study-poverty-causes-physical-pain, The Big Think (May 18, 2016).

Strong link

Not knowing where your next paycheck may come from hurts. (…) Researches looked at six studies, which found a strong link between financial insecurity and physical pain. (…) It’s known in psychology as the ‘scarcity mentality’, which is about the perception that separates the haves and the have-nots. When someone is in a constant state of worry about where their next meal is coming from, mental bandwidth becomes compromised.