To start mental toughness is your ability to push through the pain of something that seems insurmountable, this can be physical pain, psychological pain or emotional pain. It’s important to understand that pain is relative to the person experiencing it. Someone that is suffering from depression may find it too painful to get out of bed in the morning whereas an elite cyclist may be able to ignore the 10 out of 10 painful burning sensation in their legs on the final stretch of the Tour de France and to add another layer of complexity to this, they could be the same person.