Public health thrives on high-quality evidence, yet acquiring meaningful data on a population remains a central challenge of public health research and practice. Social monitoring, the analysis of social media and other user-generated web data, has brought advances in the way we leverage population data to understand health. Social media offers advantages over traditional data sources, including real-time data availability, ease of access, and reduced cost. Social media allows us to ask, and answer, questions we never thought possible. This book presents an overview of the progress on uses of social monitoring to study public health over the past decade. We explain available data sources, common methods, and survey research on social monitoring in a wide range of public health areas. Our examples come from topics such as disease surveillance, behavioral medicine, and mental health, among others. We explore the limitations and concerns of these methods. Our survey of this exciting new field of data-driven research lays out future research directions.

Written with warmth and clarity, this book belongs in the hands of anyone who has agonized over an aging friend or relative or worries about his own capacity to remember. No physical problem is as destructive or frightening as the loss of memory. Stress, pain, depression, overmedication, stroke, or Alzheimer's disease -- these are just some of the causes. In this fully revised and updated book, an internationally known neurosurgeon and researcher at Massachusetts General Hospital outlines the latest treatments that help reverse memory loss: New forms of memory recently discovered by researchers, new tests to evaluate memory capacity, new research on the effects of prescription medications, including widely used antidepressants, and brain "poisons", new research on the important role of nutrition and exercise in promoting memory, advances in early diagnosis and treatment of Alzheimer's, and promising new research on the regeneration of damaged brain cells.