Having money in hand not only gives confidence and makes you feel stronger but also attenuates physical pain. These are the conclusion from studies publised in Nature
Handling or even contemplating money can relieve both physical pain
and the distress of social rejection, according to a study by Chinese
and American psychologists. But remembering cash one has spent intensifies both types of hurt.The
findings suggest that the mere thought of having money makes people
feel physically stronger and less dependent on the approval of others
to satisfy their needs. “Money activates a general sense of confidence,
strength, and efficacy,” the researchers propose.
Thoughts of money soothe social rejection : Nature News
You can read the whole article here in Psychological Science