We tend to think of stress as being all in our head, and with the right mind-set, we can shrug it off without any harm done. This is partly true, as it is a mental and emotional response to a problem, but the stress itself can have a big impact on your body. We now understand that stress can play a big role in pain and injury. Stress increases the release of hormones such as cortisol, which slows down the immune system. The immune system is in control of the healing process t