Purpose of ReviewAn abundance of data supports the health benefits of physical activity, social connectedness, and spending time outdoors. Yet, a majority of Americans are living lives that are sedentary, lonely, and not connected with nature. We have three primary goals in writing this paper. First, we will review the well-documented health challenges arising from a sedentary, isolated lifestyle. Second, we will discuss the benefits of walking as a primary means of increasing physical activity. Finally, we will shine a light on the exponential success of Walk with a Doc, a national non-profit organization. Walk with a Doc focuses on bringing physician-led enthusiasm into our communities by organizing regular doctor-led walks in the outdoors; as well as Walk with a Future Doc, which encourages medical students to start their own Walk with a Doc programs.Recent FindingsThe Physical Activity Guidelines for Americans share that physical activity is an important action that people of all ages can take to improve their health. These guidelines recommend that adults partake in at least 150 min of moderate aerobic physical activity. Currently, only 23% of Americans are achieving this amount of aerobic activity. In addition, recent data suggest that 3 in 4 people are lonely, a significant social determinant of health. Finally, over half of all Americans spend fewer than 5 h outside each week. Walk with a Doc and Walk with a Future Doc are having an enormous impact on combating the negative effects of these health challenges. An evaluability assessment was completed in 2018 showing Walk with a Doc attendees felt the program increased their physical activity and their social connections, with a majority of Walk with a Doc gatherings occurring in nature. Physicians and other Walk with a Doc program leaders also reported high levels of satisfaction with their participation in Walk with a Doc.SummaryAs teammates in this healthcare fight, we are all painfully aware of the crisis on our hands. Of our patients, 70% are overweight or obese, nearly 80% of us are not getting enough physical activity, with all of this leading to billions of dollars in healthcare costs. Adding fuel to the fire, our doctors are burning out because of it. Today, we want to share what we have learned to be an extremely viable solution. The solution has the capacity to save 5 million lives and $68 billion dollars per year. Additionally, it is bolstering the job satisfaction and happiness of our providers. Personally, it turned my life around in 2005, and since then, it is now greater than 560 communities around the USA (and 34 other countries). We call it, simply, Walk with a Doc.