In a self-diagnosis situation, self-monitoring can help you determine any symptoms or behaviors, so you can pass them on to a doctor. Many have no real idea of what their behaviors or triggers are. Self-monitoring can help you gather that information first before meeting with a professional.
Shiny hair is not related to smoking, nor is it a result of smoking.
Innate is a general, nonspecific immunity against any pathogen trying to enter the body.