We know that preventing disease before it starts is critical to helping people live longer, healthier lives and keeping health care costs down. Poor diet, physical inactivity, tobacco use, and alcohol misuse are just some of the challenges we face. We also know that many of the strongest predictors of health and well-being fall outside of the health care setting. Our housing, transportation, education, workplaces, and environment are major elements that impact the physical and mental health of Americans. This is why the National Prevention Strategy helps us understand how to weave prevention into the fabric of our everyday lives