The United States isn't the only nation struggling to improve the quality of its health care while keeping down skyrocketing costs. Just look at the systems in England, France, Japan, Canada and Israel and it won't take long to realize nearly every one of them is in pursuit of the elusive "Triple Aim." Here's why.

Journalist David Sheff talks to Judy Woodruff about his new book, "Clean: Overcoming Addiction and Ending America's Greatest Tragedy," describing how society and addiction programs have largely failed to help 20 million Americans struggling with the disease and why stigma is one of the root causes for ineffective treatment.

A new study by the RAND Corporation estimates the cost of dementia care as $41,000 to $56,000 anually per patient. Jeffrey Brown examines the findings and implications with Dr. Ronald Petersen, director of the Mayo Alzheimer's Disease Research Center, and Dr. Richard Hodes, director of the National Institute of Aging.

A new study shows that Americans spent as much as $215 billion on care for dementia patients in 2010 and that costs are rising steeply. While Alzheimer's disease, the most common form of dementia, can't be prevented or cured at the moment, many still want to know whether the disease and its heavy costs are in their future.

Physician and writer Abraham Verghese calls for a return to the traditional physical exam.

Linwood Hearne, 64, and his wife have been homeless for years, sleeping near I-83 in Baltimore.

TED speakers examine the line between madness and sanity.

Elyn Saks asks bold questions about how society treats people with mental illness.